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When the mass and speed of body is doubl...

When the mass and speed of body is doubled, the kinetic energy of the body

A

because double

B

becomes four times

C

becomes eight times

D

remains unchanged.

Text Solution

Verified by Experts

The correct Answer is:
C
`m. = 2m` Therefore K.E. `=1/2 (2m)(2v)^2`
`= 8 xx 1/2 mv^2 and v. = 2v`
`implies ` 8 time intial value.
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