Question

Two bodies of unequal masses posses the same momentum. The K.E of the heavier mass will be ............. the K.E of the lighter mass

• A. Same as
• B. Greater than
• C. Less than
• D. Much greater than

Answer 1

The correct option is C Less than

We know that relation between
K.E and momentum is
$\frac{P^2}{2m}=K.E$
As $P$ is constant
$K.E\propto \frac{1}{mass}$
so, lighter mass will have more kinetic energy