Question

5. A student threw two identical balls up into the air. For the balls to have the same

amount of gravitational potential energy at a certain point in time, what must be
true?
a. They must be moving at the same speed,
b. They must be at the same height above the ground,
c. They must have been thrown at the same time,
d. They must have been thrown with the same amount of force.

Answer 1

The correct answer is C)

Answer 2

Answer: d. They must have been thrown with the same amount of force.

Explanation: If the balls were thrown with different amounts of force, they would not have the same amounts of gravitational potential energy at a certain point of time.

Hope this helps! :)