Q. Two persons of masses $55\ kg$ and $65\ kg$ respectively, are at the opposite ends of a boat. The length of the boat is $3.0\ m$ and weighs $100\ kg$. The $55\ kg$ man walks up to the $65\ kg$ man and sits with him. If the boat is in still water the centre of mass of the system shifts by
A) $3.0\ m$
B) $2.3\ m$
C) Zero
D) $0.75\ m$
Explanation
The correct answer is Option C: Zero.
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.