Q. The kinetic energy of a body of mass $3kg$ and momentum $2\ Ns$ is
A) $1\ J$
B) $\frac{2}{3}\ J$
C) $\frac{3}{2}\ J$
D) $4\ J$
Explanation
(b) $E = \frac{P^{2}}{2m} = \frac{4}{2 \times 3} = \frac{2}{3}J$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.