Alan launches a ball of clay into the air using a catapult. He calculates its kinetic energy to be 9.0 J. Then he tears it in half and forms a ball that has
half the mass. He launches the smaller ball into the air at the same speed.
What is the kinetic energy of the smaller ball?
O 3.00
O 4.5 J
O 9.0 J
O 18.00