A simple pendulum is hanging from a peg inserted in a vertical wall. Its bob is stretched in horizontal position from the wall a

A simple pendulum is hanging from a peg inserted in a vertical wall. Its bob is stretched in horizontal position from the wall and is left free to move. The bob hits on the wall the coefficient of restitution After how many collsions the amplitude of vibration will become less than ` 60 ^(@)`
A. 6
B. 3
C. 5
D. 4

A simple pendulum is hanging from a peg inserted in a vertical wall. Its bob is stretched in horizontal position from the wall and is left free to mov

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