

Applied Mechanics - Engineering
Q1: A glass ball is shot to hit a wall from a point on a smooth floor. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall isA
0.25
B
0.33
C
0.40
D
0.50
E
0.55
ANS:D - 0.50 Let suppose: T=wall, 2T=projection pt. |


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