Author Question: Neglecting air resistance, Sammy Smarts on a high ladder releases a ball that strikes the ground ... (Read 137 times)

Jkov05 · **on:** Jul 29, 2018

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

A) less than 100 J.
B) 100 J.
C) more than 100 J.

Question 2

If a Ping-Pong ball and a golf ball both move in the same direction with the same amount of kinetic energy, the speed of the Ping-Pong ball must be

A) less than the golf ball.
B) more than the golf ball.
C) both the same
D) need more information