Work, Power and EnergyHard
Question
A ball ′A′ moving with a speed of 90 ms−1 collides directly with another identical ball ′B′ moving with a speed V in the opposite direction. ′A′ comes to rest after the collision. If the coefficient of restitution is 0.8, the speed of ′B′ before collision , V = :-
Options
A.10 ms−1
B.81 ms−1
C.22.5 ms−1
D.90 ms−1
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