Q 11-05-046NEETJEE MainEasy
The momentum of a body increases by $50\%$. The percentage increase in its kinetic energy is
Answer: (A) $125\%$
Concept. $K = \dfrac{p^2}{2m} \propto p^2$.
Step 1. Scale. $1.5^2 = 2.25$: increase $125\%$.
Answer. $125\%$ (Option A).
Solution by Sreeraj P, M.Sc Physics