Q. A body moving with velocity $v$ has momentum and kinetic energy numerically equal. What is the value of $v$
A) $2\ m/s$
B) $\sqrt{2}\ m/s$
C) $1\ m/s$
D) $0.2\ m/s$
Explanation
(a) $P = E \Rightarrow mv = \frac{1}{2}\ mv^{2} \Rightarrow v = 2\ m/s$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.