Q. A sphere of mass $m$ moving with a constant velocity $u$ hits another stationary sphere of the same mass. If $e$ is the coefficient of restitution, then the ratio of the velocity of two spheres after collision will be
A) $\frac{1 - e}{1 + e}$
B) $\frac{1 + e}{1 - e}$
C) $\frac{e + 1}{e - 1}$
D) $\frac{e - 1}{e + 1}t^{2}$
Explanation
The correct answer is Option A: $\frac{1 - e}{1 + e}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.