Q. A shell of mass $m$ moving with velocity $v$ suddenly breaks into 2 pieces. The part having mass $m/4$ remains stationary. The velocity of the other shell will be
A) $v$
B) $2v$
C) $\frac{3}{4}\ v$
D) $\frac{4}{3}\ v$
Explanation
(d) According to conservation of momentum
$mv = \left( \frac{m}{4} \right)v_{1} + \left( \frac{3m}{4} \right)v_{2} \Rightarrow \frac{4}{3}\ v$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.