Question

If the linear momentum is increased by 5%, the kinetic energy will increase by:

• A. 50%
• B. 100%
• C. 125%
• D. 10%

Answer 1

The correct option is D 10%

Kinetic energy and linear momentum are related as
$K=\frac{P^2}{2m}$
$\frac{\Delta K}{K}=2\frac{\Delta P}{P}=2\left(5\right)=10$%;