Q. The kinetic energy of a body is increased by 300%. What is the percentage increase in the momentum of the body?
A) 50%
B) 100%
C) 150%
D) 200%
Explanation
(b) $p = \sqrt{2mE_{k}}$
$E_{k}$ is increased by a factor of 4, $p$ becomes double. So, percentage increase in momentum is 100%
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.