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If the mass of a moving body decreased b...

If the mass of a moving body decreased by one third of its initial mass and velocity is tripled, then the percentage change in its kinetic energy is

A

`500%`

B

`600%`

C

`300%`

D

`200%`

Text Solution

Verified by Experts

The correct Answer is:
`(1)`
`K = 1/2 mv^(2) Rightarrow K_(1)/K_(2) = m_(1)v_(1)^(2)/m_(2)v_(2)^(2)`
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NARAYNA-WORK , ENERGY & POWER -EXERCISE -II (C.W)
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