A 5.00-kg box sits at rest at the bottom of a ramp that is 8.00 m long
Question:
A 5.00-kg box sits at rest at the bottom of a ramp that is 8.00 m long and that is inclined at 30.0o above the horizontal. The coefficient of kinetic friction is μk = 0.40, and the coefficient of static friction is μs = 0.50. What constant force F, applied parallel to the surface of the ramp, is required to push the box to the top of the ramp in a time of 4.00 s?
Step by Step Answer:
Identify We can use the standard kinematics formulas because the for...View the full answer
University Physics with Modern Physics
ISBN: 978-0321696861
13th edition
Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford
Related Video
Static friction and kinetic friction are two types of friction that occur when two objects are in contact with each other. Static friction is the force that must be overcome to initiate motion between two surfaces that are in contact with each other but are not moving relative to each other. It is caused by the interlocking of rough surfaces at the microscopic level, and it increases as the force pushing the surfaces together increases. Once motion between the surfaces starts, the static friction is no longer present. Kinetic friction, also known as sliding friction, is the force that opposes the motion of two surfaces that are in contact with each other and are moving relative to each other. It is caused by the rubbing of the surfaces against each other and the resistance of the molecules in the surfaces to being moved. Kinetic friction is generally less than static friction, but it can still be a significant force, especially at high speeds. Both static and kinetic friction can be quantified using a coefficient of friction, which is a dimensionless number that represents the ratio of the frictional force between two surfaces to the normal force (the force perpendicular to the surfaces). The coefficient of static friction is typically greater than the coefficient of kinetic friction for a given pair of surfaces, because it takes more force to overcome the interlocking of the surfaces at rest than to maintain motion once it has started.
Students also viewed these Physics questions
-
A 20.0-kg crate sits at rest at the bottom of a 15.0-m-long ramp that is inclined at 34.0 above the horizontal. A constant horizontal force of 290 N is applied to the crate to push it up the ramp....
-
(a) A box sits at rest on a rough 30o inclined plane. Draw the free-body diagram, showing all the acting on the box. (b) How would the diagram change if the box were sliding down the plane? (c) How...
-
A 6.00-kg box sits on a ramp that is inclined at 37.0 o above the horizontal. The coefficient of kinetic friction between the box and the ramp is k = 0.30. What horizontal force is required to move...
-
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms. If the study measures neuropathy symptoms as present or not present, what level...
-
How can the disadvantages of group decision making hurt team structures?
-
Higgly Industries wants to formalize its management structure by designing an organization chart. The company has a president, a board of directors, and two vice presidents. Four discretionary cost...
-
In problem 3-13, you were asked to prepare a statement of cash flows for New Zealand Dairy Company. Use the information given in the problem to compute the firms free cash flows and the financing...
-
The FASB issued SFAS No. 115 to describe the accounting treatment that should be afforded to equity securities that have readily determinable market values that are not accounted for under the equity...
-
29. If A 21+j+k and B=1+2j+2k, find the magnitude of component of (A+B) along B: (1) 4 unit (2) 5 unit (3) 6 unit (4) 7 unit 30. Which of the following group of forces cannot produce the resultant of...
-
The Philbrick Company has two plants on opposite sides of the United States. Each of these plants produces the same two products and then sells them to wholesalers within its half of the country. The...
-
A 3.00-kg box that is several hundred meters above the surface of the earth is suspended from the end of a short vertical rope of negligible mass. A time-dependent upward force is applied to the...
-
Two boxes connected by a light horizontal rope are on a horizontal surface, as shown in Fig. P5.35. The coefficient of kinetic friction between each box and the surface is μ k = 0.30....
-
Approximate, to the nearest tenth, the volume and surface area (side only) of the cone satisfying the given conditions, where r is the radius and h is the height. r = 8 inches, h = 30 inches
-
How do you feel about privacy? Do you take steps to protect your social privacy? What about your institutional privacy? Ask a few friends and establish a plan to protect your privacy that fits with...
-
How can brands create identities in social communities?
-
Why is it important to achieve a top three ranking in a list of search engine results?
-
Under IFRS, at the end of an accounting period, held-for-trading sukuk will be valued at its fair value. The unrealised gains or losses from the remeasurement will be recognised a. in the operating...
-
What is an advergame? How do we distinguish it from other social games?
-
1. How did the older order fulfillment system harm an Avon reps sales and relationships with her customers? 2. Why do you think the big bang approach was risky at Avon? 3. How would the age of the...
-
Write a paper by answer the following question: Should Recycling Be Mandatory?
-
A Fast Pitch the fastest measured pitched baseball left the pitcher's hand at a speed of 45.0 m/s. If the pitcher was in contact with the ball over a distance of 1.50 m and produced constant...
-
A Tennis Serve In the fastest measured tennis serve, the ball left the racquet at 73.14 m/s. A served tennis ball is typically in contact with the racquet for 30.0 ms and starts from rest. Assume...
-
Automobile Airbags the human body can survive an acceleration trauma incident (sudden stop) if the magnitude of the acceleration is less than 250 m/s2. If you are in an automobile accident with an...
-
Given the following Python code: x = 20 while x > 10: #do something x = x 1 How many times this loop will iterate. 10 11 20 20 0
-
The HTML program is fine I want help to figure out what's wrong with CSS that would not make my website look the same as the picture I provided. @charset "UTF-8"; /* CSS Document for CA3 */ body {...
-
Consider a twisted pair link of distance 2 km. It is required to compute the amount of received power Pr, assuming the transmit power Pt = 1 Watt and the cable attenuation is 20 dB/km.
Study smarter with the SolutionInn App