Home
Class 11
PHYSICS
A ball is projected vertically down with...

A ball is projected vertically down with a velocity of `10 sqrt3 m//s` from a height of 20m. On htting the ground if it loses 40% of its energy, the height to which it bounces is `(g= 10 ms^(-2))`

A

20m

B

30m

C

19m

D

21m

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

A ball is projected vertically down with a velocity of 10sqrt(3) m//s from a height of 20 m. On hitting the ground if it loses 40 % of its energy, the height to which it bounces is (g = 10 ms^(-2))

A ball is released from a height of 10 m. If it loses 20% of its energy on hitting the ground, the height to which it bounces is

A body is projected horizontally with a velocity sqrt29 m/s from a height 10 m, the velocity on reaching the ground ………. m/s.

A ball is projected vertically down with an initial velocity from a height of 20m on to a horizontal floor. During the impact it loses 50% of its energy and rebounds to the same height. The velocity of projection is (g=10ms^(-2))

A ball is projected vertically down with an initial velocity from a height of 20 m on to a horizontal floor. During the impact it loses 50% of the energy and rebounds to the same height, the initial velocity of its projection is