1. For how long does a man exert 144 newtons on a car for 27 meters, if the power with which he is pushing the car is 35 watts?

2. Determine the net force required to accelerate a 2450-kg Camaro from 0 to 44 m/s in 8.0 seconds.

3. What is the resultant vector if you add vector (4,4) to vector (3,2)?

4. A 9 kg stone drops from a height of 20 meters. What is its velocity when it hits the ground?

5. A string tied to a rock is being twirled around Mary's head at 5cycless. If the rock has a mass of 700 g and the string is 70 cm long, what is the tension in the string?

6.A 2.1 kg ball is thrown upwards. At a height of 12.5 m above the ground, its velocity is 18 m/s. What is its gravitational potential energy? The value of g is 9.8 m/s².

7. A 6 N force acts on a 3 kg block for 5 seconds. If the block is initially at rest on a frictionless surface, what is the block's final velocity?

8. A puck sliding on ice approaches a 30 ramp at 20 m/s with coefficient of friction 0.15. How high will it go up the ramp along the ramp's surface?

9. A cannon fires a shell at 85 m/s at an angle of 30. Where does the shell hit downrange?

10.What is the force of gravity on a space craft 12,800 km above the Earth's surface if its mass is 3000 kg? (G = 6.67 x 10^-11 m³/kgs², the mass of the Earth is 5.972 10²⁴ kg, and the radius of the Earth is 6.371 x10⁶ m).

11. A man can swim across a river at a speed of 14 m/s due East, but the river's current is flowing South at 6 m/s, what is his velocity with respect to the bank?