Question

A light and a heavy body have equal momentum. Which one has greater kinetic
energy ?
(A)
(B)
The light body
Both have equal kinetic energy
The heavy body
(C)
(D)
None of these
En​

Answer 1

Explanation:

Since, momenta of heavy body and light body are same, thus velocity of light body is greater than that of heavy body. Also, kinetic energy is proportional to the square of velocity hence, lighter body has greater kinetic energy.