Work-Energy Balance & Conservation of Energy - Conceptual Example 7.6-2

 

Two identical balls are released from rest at the top of inclines that are identical except for the bumps shown in the accompanying figure.

 

 

Assuming air drag and friction are negligible, identify which of the following statements are true as the balls arrive at the bottom of the incline.

 

Ball A arrives first.
Ball B arrives first.
Both balls arrive at the same time.
Ball A arrives with higher speed.
Ball B arrives with higher speed.
Both balls arrive with same speed.