System of Particles and Rotational Motion - Result Question 3
3. Two persons of masses and respectively, are at the opposite ends of a boat. The length of the boat is and weighs . The man walks up to the man and sits with him. If the boat is in still water the centre of mass of the system shifts by :
[2012]
(a)
(b)
(c) zero
(d)
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Answer:
Correct Answer: 3. (c)
Solution:
- (c)
There is no external force so centre of mass of the system will not shift