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Applied Physics 10th Edition Dale ewen, Neill schurter, P. erik gundersen - Solutions
A co-pilot is charting her course on a map with a scale of 1.00 cm = 20.0 km. If the plane is charted to head 13.0 cm west, 9.00 cm north, and 2.00 cm east, what is the actual displacement of the plane in km?
A co-pilot is charting her course on a map with a scale of 1.00 cm = 20.0 km. If the plane is charted to head 25.0° north of east for 16.0 cm, north for 6.00 cm, and west for 5.00 cm, what is the actual displacement of the plane in km?
1. Vector R has x-component = + 14.0 and y-component = + 3.00. Find its length.2. Vector R has x-component = – 5.00 and y-component = + 10.0. Find its length.3. Vector R has x-component = + 8.00 and y-component = – 2.00. Find its length.4. Vector R has x-component = – 3 .00 and y-component =
Vectors A, B, and C are given. Vector A has x-component = + 3.00 and y-component = + 4.00. Vector B has x-component = + 5.00 and y-component = – 7.00. Vector C has x-component = – 2.00 and y-component = + 1.00. Find the resultant vector R.
Vectors A, B, and C are given. Vector A has x-component = + 5.00 and y-component = + 7.00. Vector B has x-component = + 9.00 and y-component = – 3.00. Vector C has x-component = – 5.00 and y-component = + 5.00. Find the x- and y-components of the resultant vector R.
Vectors A, B, and C are given. Vector A has x-component = – 3.00 and y-component = – 4.00. Vector B has x-component = – 5.00 and y-component = + 7.00. Vector C has x-component = + 2.00 and y-component = – 1.00. Find the x- and y-components of the resultant vector R.
Vectors A, B, and C are given. Vector A has x-component = – 5.00 and y-component = – 7.00. Vector B has x-component = – 9.00 and y-component = + 3.00. Vector C has x-component = + 5.00 and y-component = – 5.00. Find the x- and y-components of the resultant vector R.
Graph and find the x- and y-components of each resultant vector R, where R = A + B + C +D.
Graph and find the x- and y-components of each resultant vector R, where R = A + B + C +D.
1. An airplane takes off and flies 245 km on a course of 45.0° south of west and then changes direction and flies 175 km due south, where it lands. Find the displacement from its starting point to its landing point.2. A ship travels 155 km from port on a course of 35.0° south of west to an
1. Displacement(a) Can be interchanged with direction.(b) Is a measurement of volume.(c) Can be described only with a number.(d) Is the net distance an object travels, showing direction and distance.2. When adding vectors, the order in which they are added(a) Is not important.(b) Is important.(c)
1. Describe how to add two or more vectors graphically.2. Describe how to find a resultant vector if given its x- and y-components.3. Is a vector limited to a single position in the number plane?4. Is the angle of a vector in standard position measured clockwise or counterclockwise?5. What are the
Amy walks at an average speed of 1.75 m/s toward her airport gate. When she comes within 57.5 m of her gate, she gets onto and continues to walk on a people mover at the same rate.(a) If she arrives at the gate 15.3 s after getting on the people mover, how fast was she moving relative to the
A novice captain I s pointing his ferryboat directly across the river at a speed of 15.7 mi/h. If he does not pay attention to the current that is headed downriver at 5.35 mi/h, what will be his resultant speed and direction? (Consider that the current and the boat’s initial heading are
Annette is a civil engineer and needs to determine the length of a highway on-ramp before construction begins. If the average vehicle takes 10.8 s to go from 20.0 mi/h to 60.0 mi/h, how long should she design the separate merge lane to be so a car can reach a speed of 60.0 mi/h before merging?
As a movie stunt coordinator, you need to be sure a stunt will be safe before it is performed. If a stunt-woman is to run horizontally off the roof of a three-story building and land on a foam pad 7.35 m away from the base of the building, how fast should she run as she leaves the roof?
As a newspaper delivery boy, Jason needs to know his projectile motion to throw a paper horizontally from a height of 1.40 m to a door that is 13.5 m away. What must the paper’s velocity be for it to reach the door?
Find the average speed (in the given units) of an auto that travels each distance in the given time.1. 150 mi in 3.0 h (in mi/h) 2. 190 m in 8.5 s (in m/s)3. 8550 m in 6 min 35 s (in m/s) 4. 45 km in 0.50 h (in km/h)5. 785 ft in 11.5 s (in ft/s)6. Find the average speed (in mi/h) of a racing car
An automobile is traveling at 55 mi/h. Find its speed(a) in ft/s.(b) in m/s.(c) in km/h.
An automobile is traveling at 22.0 m/s. Find its speed(a) in km/h. (b) in mi/h. (c) in ft/s.
1. A semi-trailer truck traveling 100 km/h continues for 2.75 h. How far does it go?2. A flatbed truck travels for 3.85 h at 105 km/h. How far does it go?3. The average speed of a garbage truck is 60.0 km/h. How long does it take for the truck to travel 265 km?4. A highway maintenance truck has an
Find the velocity for each displacement and time.1. 160 km east in 2.0 h 2. 100 km north in 3.0 h3. 1000 mi south in 8.00 h 4. 31.0 mi west in 0.500 h5. 275 km 30° at south of east in 4.50 h6. 426 km 45° at north of west in 2.75 h
Milwaukee is 121 mi (air miles) due west of Grand Rapids. Maria drives 255 mi in 4.75 h from Grand Rapids to Milwaukee around Lake Michigan. Find(a) Her average driving speed(b) Her average travel velocity.
Telluride, Colorado, is 45 air miles at 11° east of north of Durango. On a winter day, Chuck drove 120 mi from Durango to Telluride around a mountain in 4¼ h including a traffic delay. Find (a) His average driving speed (b) His average travel velocity.
1. A plane is flying due north at 325 km/h and encounters a wind from the south at 45 km/h. What is the plane’s new velocity with respect to the ground in standard position?2. A plane is flying due west at 275 km/h and encounters a wind from the west at 80 km/h. What is the plane’s new velocity
A plane is flying due west at 235 km/h and encounters a wind from the north at 45.0 km/h. What is the plane’s new velocity with respect to the ground in standard position?
A plane is flying due north at 185 mi/h and encounters a wind from the west at 35.0 mi/h. What is the plane’s new velocity with respect to the ground in standard position?
A plane is flying southwest at 155 mi/h and encounters a wind from the west at 45.0 mi/h. What is the plane’s new velocity with respect to the ground in standard position?
A plane is flying southeast at 215 km/h and encounters a wind from the north at 75.0 km/h. What is the plane’s new velocity with respect to the ground in standard position?
A plane is flying at 25.0° north of west at 190 km/h and encounters a wind from 15.0° north of east at 45.0 km/h. What is the plane’s new velocity with respect to the ground in standard position?
A plane is flying at 36.0° south of west at 150 mi/h and encounters a wind from 75.0° north of east at 55.0 mi/h. What is the plane’s new velocity with respect to the ground in standard position?
An automobile changes speed as shown. Find its acceleration.7. A dragster starts from rest and reaches a speed of 62.5 m/s in 10.0 s. Find its acceleration (in m/s2).8. A car accelerates from 25 mi/h to 55 mi/h in 4.5 s. Find its acceleration (in ft/s2).9. A train accelerates from km/h to km/h in 2
A plane accelerates at 30.0 ft/s2 for 3.30 s. Find its increase in speed1. in ft/s. 2. in mi/h.A rocket accelerates at 10.0 m/s2 from rest for 20.0 s. Find its increase in speed3. in m/s. 4. in km/h.5. How long (in seconds) does it take for a rocket sled accelerating at 15.0 m/s2 to change its
1. A bulldozer accelerates from rest to 3.00 m/s in 4.20 s. What is its acceleration?2. A pickup truck pulling a trailer accelerates at 3.25 m/s2 for 5.80 s. If it starts from rest, what is its final velocity?3. The speed of a delivery van increases from 2.00 m/s at 1.00 s to 16.0 m/s at 4.50 s.
Substitute in the given equation and find the unknown quantity.1. Given: vavg = vf + vi/2 vf = 6.20 m/s vi = 3,900 m/s vavg =?2. Given: a = vf + vi/t a = 3.07 m/s2 vf = 16.8 m/s t = 4.10 s vi =?3. Given: s = vit + ½ at2 t = 3.00s a = 6.40 m/s2 vi = 33.0 m/s s =?4. Given: 2as = v2f –
1. The average velocity of a mini-bike is 15.0 km/h. How long does it take for the bike to go 35.0 m?2. A sprinter starting from rest reaches a final velocity of 18.0 mi/h. What is her average velocity?3. A coin is dropped with no initial velocity. Its final velocity when it strikes the earth is
1. The final velocity of a truck is 74.0 ft/s. If it accelerates at a rate of 2.00 ft/s2 from an initial velocity of 5.00 ft/s, how long will it take for it to attain its final velocity?2. A truck accelerates from 85 km/h to 120 km/h in 9.2 s. Find its acceleration in m/s2.3. How long does it take
A car is traveling at 60 km/h. It then accelerates at 3.6 m/s2 to 90 km/h. (a) How long does it take to reach the new speed? (b) How far does it travel while accelerating?
A rock is dropped from a bridge to the water below. It takes 2.40 s for the rock to hit the water. (a) Find the speed (in m/s) of the rock as it hits the water. (b) How high (in metres) is the bridge above the water?
A bulled is fired vertically upward from a gun and reaches a height of 7000 ft.(a) Find its initial velocity.(b) How long does it take to reach its maximum height?(c) How long is it in flight?
A bulled is fired vertically upward from a gun with an initial velocity of 250 m/s.(a) How high does it go?(b) How long does it take to reach its maximum height?(c) How long is it in flight?
A rock is thrown down with an initial speed of 30.0 ft/s from a bridge to the water below. It takes 3.50 s for the rock to hit the water.(a) Find the speed (in ft/s) of the rock as it hits the water.(b) How high is the bridge above the water?
John stands at the edge of a deck that is 25.0 m above the ground and throws a rock straight up with an initial speed of 10.0 m/s. (a) How long does it take to reach its maximum height? (b) What maximum height above the deck does it reach? (c) Assuming it misses the deck on its way down at what
John stands at the edge of a deck that is 40.0 m above the ground and throws a rock straight up that reaches a height of 15.0 m above the deck.(a) What is the initial speed of the rock?(b) How long does it take to reach its maximum height? (c) Assuming it misses the deck on its way down at what
John is standing on a steel beam 255.0 ft above the ground. Linda is standing 30.0 ft directly above John. (a) For John to throw a hammer up to Linda, at what initial speed must John throw the hammer for it to just reach Linda? (b) Suppose the hammer reaches the correct height, but Linda just
Kurt is standing on a steel beam 275.0 ft above the ground and throws a hammer straight up at an initial speed of 40.0 ft/s. At the instant he releases the hammer he also drops a wrench from his pocket. Assume that neither the hammer nor the wrench hits anything while in flight. (a) Find the time
One ball is dropped from a cliff. A second ball is thrown down 1.00 s later with an initial speed of 40.0 ft/s. How long after the second ball is thrown will the second ball overtake the first?
1. A car with velocity 2.00 m/s at t = 0 accelerates at 4.00 m/s2 for 2.50 s. What is its velocity at t = 2.50 s?2. A truck moving at 30.0 km/h accelerates at a constant rate of 3.50 m/s2 for 6.80 s. Find its final velocity in km/h.3. A bus accelerates from rest at a constant 5.50 m/s2. How long
Find the horizontal range for projectiles with the following speeds and angles. Angle Initial Speed15.0° .......... 35.0 m/s
Find the horizontal range for projectiles with the following speeds and angles. Angle Initial Speed75.0° .......... 35.0 m/s
Find the horizontal range for projectiles with the following speeds and angles. Angle Initial Speed35.0° .......... 35.0 m/s
Find the horizontal range for projectiles with the following speeds and angles. Angle Initial Speed55.0° .......... 35.0 m/s
Find the horizontal range for projectiles with the following speeds and angles. Angle Initial Speed45.0° .......... 35.0 m/s
Draw a conclusion about range and angles based on the answers to Problems 1 through 5.
Part of military training involves aiming and shooting a cannon. If a soldier sets the cannon at an angle of 62.0° and a launch velocity of 67.0 m/s, how far will the projectile travel horizontally?
A faulty fireworks rocket launches but never discharges. If the rocket launches with an initial velocity of 33.0 ft/s at an angle of 85.0° how far away from the launch site does the rocket land?
An outfielder throws a baseball at a speed of 110 ft/s at an angle of 25.0° above the horizontal to home plate 290 ft away. Will the ball reach the catcher on the fly or will it bounce first?
A bearing rolls off a 1.40-m-high workbench with an initial horizontal speed of 0.600 m/s. How far from the edge of the bench does the bearing land?
A mechanic’s socket rolls off a 1.50-m-high bench with an initial horizontal speed of 0.800 m/s. How far from the edge of the bench does the socket hit the floor?
1. A boat travels at 17.0 mi/h for 1.50 h. How far does the boat travel?2. A commercial jet flies at 550 mi/h for 3000 mi. For how much time does the jet fly?
A plane flies north at 215 km/h. A wind from the east blows at 69 km/h. What is the plane’s new velocity with respect to the ground in standard position?
A glider flies southeast (at 320.0°) at 25.0 km/h. A wind blows at 12.0 km/h from 15.0° south of west. What is the new velocity of the glider with respect to the ground in standard position?
A runner starts from rest and attains a speed of 8.00 ft/s after 2.00 s. What is the runner’s acceleration?
A race car goes from rest to 150 km/h with an acceleration of 6.0 m/s2. How many seconds does it take?
A sailboat has an initial velocity of 10.0 km/h and accelerates to 20.0 km/h. Find its average velocity.
A skateboarder starts from rest and accelerates at a rate of 1.30 m/s2 for 3.00 s. What is his final velocity?
A plane has an average velocity of 500 km/h. How long does it take to travel 1.5 x 104 km?
A train has a final velocity of 110 km/h. It accelerated for 36 s at 0.50 m/s2. What was its initial velocity?
A boulder is rolling down a hill at 8.00 m/s before it comes to rest 17.0 s later. What is its average velocity?
A truck accelerates from rest to 120 km/h in 13 s. Find its acceleration.
An airplane reaches a velocity of 71.0 m/s when it takes off. What must its acceleration be if the runway is 1.00 km long?
An airplane accelerates at 3.00 m/s2 from a velocity of 21.0 m/s over a distance of 535 m. What is its final velocity?
A bullet is fired vertically upward and reaches a height of 2150 m. (a) Find its initial velocity. (b) How long does it take to reach its maximum height? (c) How long is it in flight?
A rock is thrown down with an initial speed of 10.0 m/s from a bridge to the water below. It takes 2.75 s for the rock to hit the water. (a) Find the speed of the rock as it hits the water. (b) How high is the bridge above the water?
A shot put is hurled at 9.43 m/s at an angle of 55.0°. Ignoring the height of the shot-putter, what is the range of the shot?
An archer needs to hit a bull’s eye on a target at eye level 60.0 ft away. If the archer fires the arrow from eye level with a speed of 47.0 ft/s at an angle of 25.0° above the horizontal, will the arrow hit the target?
1. Velocity is(a) The distance traveled per unit of time.(b) The same as speed.(c) Direction of travel and distance traveled per unit of time.(d) Only the direction of travel.2. A large heavy rock and a small marble are dropped at the same time from the roof of a three-story building. Neglecting
1. Distinguish between velocity and speed.2. Why are vectors important in measuring motion? Provide two examples where vectors are used to help measure motion.3. Give three familiar examples of acceleration.4. Distinguish among acceleration, deceleration, and average acceleration.
Is velocity always constant?
Engineers at Boeing developing specs for their “next-generation” 737 aircraft needed to know the acceleration of the 737-900 during a typical take-off. (a) What acceleration would they calculate given the plane’s 78,200-kg mass and its maximum engine force of 121,000 N? (b) How fast would the
The Apollo spacecrafts were launched toward the moon using the Saturn rocket, the most powerful rocket available. Each rocket had five engines producing a total of 33.4 x 106 N of force to launch the 2.77 x 106-kg spacecraft toward the moon. (a) Find the average acceleration of the spacecraft.(b)
Kirsten’s mass is 3.73 slugs. Being the physics fan that she is, she decides to see what her apparent weight will be during an elevator ride. Beginning at rest, the elevator accelerates upward at 4.50 ft/s2 for 3.00 s and then continues at a constant upward velocity. Finally, as the elevator
A motorcycle racer traveling at 145 km/h loses control in a corner of the track and slides across the concrete surface. The combined mass of the rider and bike is 243 kg. The steel of the motorcycle rubs against the concrete road surface. (a) What is the frictional force between the road and the
The motorcycle and rider are sliding with the same acceleration as found in Problem 4. If the motorcycle and rider have been sliding for 4.55 s, what will be the force applied to the motorcycle and the rider when they strike the side barrier and come to rest in another 0.530 s?
Find the total force necessary to give each mass the given acceleration.1. m = 15.0 kg, a = 2.00 m/s22. m = 4.00 kg, a = 0.500 m/s23. m = 111 kg, a = 6.70 m/s24. m = 91.0 kg, a = 6.00 m/s25. m = 28.0 kg, a = 9.00 m/s26. m = 42.0 kg, a = 3.00 m/s27. m = 42.0 kg, a = 3.00 m/s28. m = 2.20 slugs, a =
Find the acceleration of each mass with the given total force.1. m = 190 kg, F = 7600 N2. m = 7.00 slugs, F = 12.0 lb3. m = 3.60 kg, F = 42.0 N 4. m = 0.790 kg, F = 13.0 N5. m = 110 kg, F = 57.0 N 6. m = 84.0 kg, F = 33.0 N7. m = 9.97 slugs, F = 13.9 lb 8. m = 210 kg, F = 41.0 N
1. Find the total force necessary to give an automobile of mass 1750 kg an acceleration of 3.00 m/s2.2. Find the acceleration produced by a total force of 93.0 N on a mass of 6.00 kg.3. Find the total force necessary to give an automobile of mass 120 slugs an acceleration of 11.0 ft/s2.4. Find the
What is the rate of deceleration of a 1400-kg SUV that is going 75.0 km/h and then slows to 25.0 km/h in 8.20 s?
An earthmover slows from 15.0 km/h to 3.00 km/h in 2.70 s. What is its rate of deceleration?
1. Find the total force necessary to give a 140 kg mass an acceleration of 41.0 m/s2.2. Find the acceleration produced by a total force of 300 N on a mass of 0.750 kg.3. Find the mass of an object with acceleration 15.0 m/s2 when an unbalanced force of 90.0 N acts on it.
An automobile has a mass of 100 slugs. The passengers it carries have a mass of 5.00 slugs each.(a) Find the acceleration of the auto and one passenger it the total force acting on them is 1500 lb.(b) Find the acceleration of the auto and six passengers if the total force is again 1500 lb.
1. Find the acceleration produced by a force of 6.75 x 106 N on a rocket of mass 5.27 x 105 kg.2. An astronaut has a mass of 80.0 kg. His space suit has a mass of 15.5 kg. Find the acceleration of the astronaut during his space walk when his backpack propulsion unit applies a force to him (and his
A discus thrower exerts a force of 140 N on the discus. (a) If the discus has an acceleration of 19.0 m/s2, what is the mass of the discus? (b) If the mass of the discus is doubled and the applied force remains the same, what is the new acceleration?(c) If the force is doubled and the mass is
A scooter and rider together have a mass of 275 kg.(a) If the scooter slows with an acceleration of – 4.50/s2, what is the net force on the scooter and rider?(b) Describe the direction of the force and state the meaning of the (–) sign.
A pickup truck with mass of 1230 kg moving at 105 km/h stops within a distance of 53.0 m. (a) What is the direction and size of the force that acts on the truck?(b) How much more slowing force would be required to stop the truck in half the distance?
Find the weight for each mass.1. m = 30.0 kg2. m = 60.0 kg3. m = 10.0 slugs4. m = 9.00 kg
Find the mass for each weight.1. Fw = 17.0 N2. Fw = 21.0 lb3. Fw = 12,000 N4. Fw = 25,000 N5. Fw = 6.7 x 1012 N6. Fw = 5.5 x 106 lb
1. Find the weight of an 1150-kg automobile.2. Find the weight of an 81.5-slug automobile.3. Find the mass of a 2750-lb automobile.4. What is the mass of a 20,000-N truck?5. What is the mass of a 7500-N trailer?6. Find the mass of an 11,500-N automobile.
Find the weight of a 1350-kg automobile? (a) On the earth.(b) On the moon.
Maria weighs 115 lb on the earth. What are her (a) Mass (b) Weight on the moon?
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