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1. |
A ball is dropped from a height of 10 m on a smooth floor and after the impact, the ball bounces to a height of 2.5 m. The coefficient of restitution between the ball and the floor is |
A. | 0.25 |
B. | 0.33 |
C. | 0.67 |
D. | 0.5 |
Answer» E. | |