Q. If velocity of a body is twice of previous velocity, then kinetic energy will become
A) 2 times
B) $\frac{1}{2}$ times
C) 4 times
D) 1 times
Explanation
(c) Kinetic energy $= \frac{1}{2}mv^{2}$
$\therefore K.E. \propto v^{2}$
If velocity is doubled then kinetic energy will become four times
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.