Q. 113.7( 10 Votes )

# If the speed of a body is halved, what will be the change in its kinetic energy?

Answer :

Mass of the body, m = m

Velocity of the body, v =

Hence, the new kinetic energy,

= 1/2 (m × v^{2}/4)

= 1/8 mv^{2}

Hence, the Kinetic energy would be reduced to one fourth the actual one.

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