Neglecting air resistance, a man on a high ladder releases a ball which strikes the ground with 100 J of kinetic energy. If he were to throw it straight upward instead, it will eventually reach the ground with a kinetic energy of

Question

Quizplus · Accepted Answer

The kinetic energy when the ball hits the ground is solely dependent on the height from which it was released or thrown, not the direction of the throw. Neglecting air resistance, energy conservation ensures that the ball will have the same kinetic energy upon reaching the ground, regardless of whether it was dropped or thrown upwards.

Neglecting Air Resistance, a Man on a High Ladder Releases