Q.
Three persons $P,Q$ and $R$ of same mass travel with same speed $u$ such that each one faces the other always. After how much time will they meet each other?
A) $d/u$ sec
B) $2d/3u$ sec
C) $2d/\sqrt{(3)}u$ sec
D) $d/\sqrt{3u}$ sec
Explanation
The correct answer is Option B: $2d/3u$ sec.
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.