Home
Class 12
PHYSICS
A ball is allowed to fall from a height ...

A ball is allowed to fall from a height of 10m . If there is 40% loss of energy due to impact, then after one impact ball will go up to

A

10 m

B

8 m

C

4m

D

6m

Text Solution

Verified by Experts

The correct Answer is:
D
Kinetic energy of ball when reaching the ground
`=mgh=mgxx10`
Kinetic energy after the impact
`(60)/(100)xxmgxx10=6mg`
If the ball rises to a height h,then mgh=6mg.
Hence ,h=6m.
Promotional Banner

Topper's Solved these Questions

  • CONCEPT BUILDER

    DISHA PUBLICATION|Exercise Exercise-1 Concept Builder (topic 3:Power)|20 Videos

  • CONCEPT BUILDER

    DISHA PUBLICATION|Exercise Exercise-1 Concept Builder (topic 4:Collisions)|1 Videos

  • CONCEPT BUILDER

    DISHA PUBLICATION|Exercise Exercise-1 Concept Builder (topicwise)|34 Videos

  • COMMUNICATION SYSTEM

    DISHA PUBLICATION|Exercise EXERCISE-2 : Concept Applicator|30 Videos

  • CURRENT ELECTRICITY

    DISHA PUBLICATION|Exercise EXERCISE-2 Concept Applicator|23 Videos

Similar Questions

Explore conceptually related problems

A ball is allowed to fall from rest on a horizontal floor from a height of 10m . If there is 20% loss of energy due to impact, then after one impact ball will go upto

A glass ball is dropped from height 10 m. If there is 15% loss of energy due to impact, then after one impact, the ball will go upto.

A body is allowed to fall freely under gravity from a height of 10m. If it looses 25% of its energy due to impact with the ground, then the maximum height it rises after one impact is

A ball is allowed to fall from a height of 8cm, if the ball is perfectly elastic, how much it rise after rebound-

An inelastic ball falls from a height of 100 metres. It loses 20% of its total energy due to impact. The ball will now rise to a height of

A ball is dropped onto a floor from a height of 10 m . If 20% of its initial energy is lost,then the height of bounce is

A ball falls from a height of 10 m. On rebounding, it loses 30% energy. The ball goes upto a height of