Question
A student bounces a tennis ball. She drops the ball, and then it bounces back up to her. When does the ball have zero kinetic energy?(1 point)
Responses
Exactly when it hits the ground
Exactly when it hits the ground
As soon as she drops it
As soon as she drops it
At the very top of its bounce
At the very top of its bounce
Just after it hits the ground
Responses
Exactly when it hits the ground
Exactly when it hits the ground
As soon as she drops it
As soon as she drops it
At the very top of its bounce
At the very top of its bounce
Just after it hits the ground
Answers
GPT-4o mini
The correct response is:
**At the very top of its bounce.**
At this point, the ball's speed is zero, which means it has zero kinetic energy. Kinetic energy is dependent on the velocity of the object, and when the ball reaches its highest point after bouncing, it momentarily stops before falling back down.
**At the very top of its bounce.**
At this point, the ball's speed is zero, which means it has zero kinetic energy. Kinetic energy is dependent on the velocity of the object, and when the ball reaches its highest point after bouncing, it momentarily stops before falling back down.