Home
Class 11
PHYSICS
A rubber ball drops from a height 'h'. A...

A rubber ball drops from a height 'h'. After rebounding twice from the ground, it rises to `h//2`. The co-efficient of restitution is

A

`(1)/(2)`

B

`((1)/(2))^(1//2)`

C

`((1)/(2))^(1//4)`

D

`((1)/(2))^(1//6)`

Text Solution

Verified by Experts

The correct Answer is:
C

`h_(n) = e^(2n) g`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level- II (C.W)|68 Videos
  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level- III (C.W)|50 Videos
  • WORK POWER AND ENERGY

    NARAYNA|Exercise C.U.Q-Key|75 Videos
  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE IV|43 Videos

Similar Questions

Explore conceptually related problems

A ball is dropped from a height of 3 m. What is the height upto which the ball will rebound ? The cofficient of restitution is 0.5.

A ball is dropped from a height of 20 m in the floor and rebounds to 1.25 m after second collision, then coefficient of restitution e is

Knowledge Check

  • A small metal spehre is released from a height of 2m. After striking the ground, it rises to a height of 1.28 m. What is the coefficient of restitution?

    A
    `0.8`
    B
    `0.6`
    C
    `0.5`
    D
    `0.4`
  • After falling from a height h and striking the ground twice, a ball rise up to the height [e = coefficient of restitution]

    A
    he
    B
    `he^(2)`
    C
    `he^(3)`
    D
    `he^(4)`
  • A ball is thrown vertically downwards with velocity sqrt(2gh) from a height h. After colliding with the ground it just reaches the starting point. Coefficient of restitution is :

    A
    `(1)/(sqrt(2))`
    B
    `(1)/(2)`
    C
    1
    D
    `sqrt(2)`
  • Similar Questions

    Explore conceptually related problems

    A ball is dropped from a height of 20 m in the floor and rebounds to 1.25 m after second collision, then coefficient of restitution e is

    A body is allowed to fall on the ground from a height h_(1) . If it is rebound to a height h_(2) then the coefficient of restitution is:

    A ball released from a certain height strikes the ground after 2 second. After bouncing from the ground it rises to the highest point in 1 second. What is the coefficient of restitution?

    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 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