KE = ½ m*v² PE = mgh ME = ½ m*v²+ mgh

You serve a volleyball with a mass of 3.1 kg. The ball leaves your hand with a speed of 40 m/s. The ball has energy.

A baby carriage is sitting at the top of a hill that is 12 m high. The carriage with the baby has a mass of 2.5 kg. The carriage has energy.

There is a bell at the top of a tower that is 37 m high. The bell weighs 9 kg. The bell has energy.

100 joules of energy is used to move an object that is 43 kg. What is the velocity of the object that is being moved? The object has energy.

57 joules of energy are being used by Billy the Bird. Billy is sitting on top of a building that is 32 m high. What is Billy’s mass? Billy has energy.