1- a 0.250 kg egg-drop project is at the top of the 14 meter tall stadium. what is the projects potential energy?

2- jason has decided to become a jockey. he and his horse have a combined mass of 550 kg, and they are traveling at 15 m/s when they cross the finish line (in first place ! ) what is their kinetic energy ?

3- a 0.5 kg ball is at the top of a 20 meter tall hill.

a) what is the ball's kinetic energy ?
b) what is the ball's potential energy ?
c) what is the ball's mechanical energy ?

4 - a 2.0 kg toy has been thrown in the air it is 1.5m above the ground and is moving up at 3.0 m/s

a) what is the toy's kinetic energy ?
b) what is the toy's potential energy ?
c) what is the toy's mechanical energy ?