What is the gravitational potential energy of a 1-kg block at rest on a table 1 m above the floor?

A cart slows with an acceleration of 2 m/s2 over a period of 6 s. If its initial speed was 12 m/s how far will it travel before it stops?  

An apple falls from a tree. How do its KE and GPE change as it falls to the ground?

Two identical bodies are sliding toward each other on a frictionless surface. One moves at 1 m/s and the other at 2 m/s. They collide and stick. The speed of the combined mass is:

A truck increases its speed from 8 m/s to 28 m/s over a distance of 120 m? How long does this take? Assume that the acceleration is constant.

A bomber flying at a constant velocity in level flight releases its bomb and hits a target on the ground. Neglecting air resistance, which one of the following is NOT true?

John is running up stairs rising vertically 4.0 m in 4.2 s. What is the power supplied by his muscles if his mass is 60.0 kg?

A driver, traveling at 22.0 m/s, slows down her car and stops. What work is done by the friction force against the wheels if the mass of the car is 1500 kg?

If you push a car with a force F, the force that the car exerts on you:

The maximum speed a car can round an 80-m radius horizontal curve without slipping is 20 m/s. How fast can this car round a 320-m radius curve on the same road?