Question

Students conducted an experiment in which a ball was thrown into the air and then caught at the same height from which it was released. They determined that the ball had 100 J of kinetic energy when it was released. They calculated the ball's energy just before it was caught and determined that it's kinetic energy was less than 100 J.Which of the following statements MOST LIKELY accounts for the difference in the ball's initial and final kinetic energy?

Answer 1

A ball was thrown into the air and then caught at the same height from which it was released.

The initial kinetic energy of the ball was 100 J and the ball's kinetic energy just before it was caught was less than 100 J.