Problem #1:
1) A 3.5-kg rock is thrown with a velocity of 10.0 m/s. What is the KE of the rock?

2) What is the Kinetic Energy of a 67.0-kg man if he is walking at a speed of 1.0 m/s?

3) What is the mass of a ball that is moving at 15 m/s and has a kinetic energy of 15,000 J?

4) A 50-N object is lifted to a height of 5.0 meters. What is the potential energy of this object at its
new height?

5) A 25.0-kg child climbs a 3.5-m high tree. What is the child’s PE atop the tree?