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 $10\%$

We know,

$K=\frac{p^2}{2M}$

Now,

$\begin{array}{c}\frac{\Delta k}{k}\times 100=\frac{2\Delta p}{p}\times 100\end{array}$

$=10$%

$\therefore$ Option $D$ is correct.