A ball is thrown straight upward. The ball's initial speed is 30 m/s and its mass is 0.05 kg, resulting in an initial kinetic energy of 22.5 J.If the initial potential energy of the ball is 10 J and there is no frictional force, what would be the ball's total energy while it is moving?
A) 0.0 J
B) 10.0 J
C) 22.5 J
D) 32.5 J

Question

Quizplus · Accepted Answer

The total energy of the ball is the sum of its initial kinetic energy (22.5 J) and its initial potential energy (10 J), which equals 32.5 J. This total energy remains constant throughout the ball's motion if there is no frictional force acting on it.

A Ball Is Thrown Straight Upward