Q7
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is
A.
0.25
B.
0.50
AnswerC.
0.75
D.
1.0
Answer: Option B
Solution
Answer: Option B
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