Home
Class 11
PHYSICS
A ball falls from a height of 10m on to ...

A ball falls from a height of `10m` on to a horizontal plane. If the coefficient of restitution is `0.4`, then the velocity with which it rebounds from the plane after second collision is

A

`2.24 ms^(-1)`

B

`5.6 ms^(-1)`

C

`2.8 ms^(-1)`

D

`0.9 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`v_(n) = e^(n)v` where `v = sqrt(2gh)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COLLISION

    NARAYNA|Exercise Level-II (H.W)|54 Videos

  • COLLISION

    NARAYNA|Exercise Subjective type Questions|9 Videos

  • CIRCULAR MOTION

    NARAYNA|Exercise LEVEL II(H.W)|51 Videos

  • FRICTION

    NARAYNA|Exercise Passage type of questions I|6 Videos

Similar Questions

Explore conceptually related problems

A ball falls from a height of 5m on to a horizontal plane.If the coefficient of restitution is 0.4, the height to which it rebounds after 2 collisions is approximately

A body of mass 'm' falls from height 'h' on the ground. If 'e' be the coefficient of restitution between the body and the ground, find (i) the velocity with which it rises after the n^("th") collision with the ground (ii) The height upto which it rises after the n^("th") collision.

Knowledge Check

  • A ball is dropped from a height h on a horizontal plane and the coefficient of restitution for the impact is e, the velocity with which the ball rebounds from the flor is

    A
    eh
    B
    egh
    C
    `esqrt((gh))`
    D
    `esqrt((2gh))`

  • A ball after freely falling from a height of 4.9m strikes a horizontal plane. If the coefficient of restitution is 3/4 , the ball will strike second time with the plane after

    A
    `1/2s`
    B
    `1s`
    C
    `3/2s`
    D
    `3/4s`

  • A metal ball falls from a height of 32 meter on asteel plate. If the coefficient of restitution is 0.5, towhat height will the ball rise after second bounce?

    A
    2m
    B
    4m
    C
    8m
    D
    16 m

    • Similar Questions

    Explore conceptually related problems

    A metal ball falls from a height of 32 metre on a steel plate. If the coefficient of restitution is 0.5, to what height will the ball rise after second bounce

    A ball is dropped from a height 100 m on the ground. If the coefficient of restitution is 0.2, the height to which the ball will go up after it rebounds for the II^(nd) time.

    A particle dropped from a height of 100 m, collides with the horizontal surface where coefficient of restitution is 0.5, the velocity attained by the particle in 5^(th) collision is

    A ball of mass M falls from a height on a floor for which the coefficient of restitution is e. The height attained by the ball after two rebounds is

    A ball falls from a height h upon a fixed horizontal plane, e is the coefficient of restitution, the whole distance described by the ball before it comes to rest is

    Home
    Profile