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A metal ball falls from a height of 1m o...

A metal ball falls from a height of 1m on to a steel plate and jumps upto a height of 81 cm. The coefficient of restitution of the ball and steel plate is

A

0.2

B

9

C

0.9

D

90

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A metal ball falls from a height of 1 on to a steel plate and jumps upto a height of 81 cm. The coefficient of restitution of the ball and steel plate is

    A
    0.2
    B
    9
    C
    0.9
    D
    90

  • A ball falls from rest from a height h onto a floor, and rebounds to a height h//4 . The coefficient of restitution between the ball and the floor is

    A
    `(1)/(sqrt(2))`
    B
    `(1)/(2)`
    C
    `(1)/(4)`
    D
    `(3)/(4)`

  • A ball is dropped from a height h onto a floor and rebounds to a height h//6 . The coefficient of restitution between the ball and the floor is

    A
    `(1)/(2)`
    B
    `(1)/(4)`
    C
    `(2)/(3)`
    D
    `(1)/sqrt(6)`

    • Similar Questions

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    Two steel ball of equal diameter are connected by a rigid bar of negligible weight of shown and are dropped in the horizontal position from height h above the heavy steel and brass plates. If the coefficient of restitution between the ball and steel base is 0.6 and that between the other ball and the brass base is 0.4. the angular velocity of the bar immediately after rebound is _____ Assume the two impacts are simultaneous (g = 10 m//s^(2))

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