Question

If momentum of a body is doubled how its K.E .will change ?

Answer 1

So, P = m v where 'P' is the momentumof the body. K.E. = 1/2 m v^2 where 'K.E.' is the kinetic energy of the body.Momentum is directly proportional to velocity. If the momentum of an object is doubled, but its mass does not increase , then its velocity is doubled.

Answer 2

HERE IS YOUR ANSWER____
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IF momentum of a body is doubled then its kinetic energy becomes 4times it's initial value.
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