Physics · Collisions and Restitution
A ball kept at 20 m height falls freely in a vertically downward direction and hits the ground. If the coefficient of restitution is 0.4, the velocity of the ball on its first rebound is: [g = 10 ms-2]
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 116 ms-1
- 212 ms-1
- 38 ms-1✓
- 44 ms-1
Correct answer
8 ms-1
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