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When the momentum of a body increases by...

When the momentum of a body increases by 100%, its K.E. increases by :

A

0.2

B

0.4

C

1

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
`p_(2) = 2p_(1) , v_(2) = 2v_(1)`
As `E prop v^(2), E_(2) = 4E_(1)`
`Delta E% = (E_(1) - E_(1))/(E_(1)) xx 100 `
= (4- 1)` xx 100`
= 300 %
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