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CBSE Class 11-science Answered

There are two men standing facing each other on two boats floating on still water at a short distance apart. A rope is held at its ends by both. Explain why the two boats meet at same point when each man pulls the rope separately or both pull together? Will the time taken be different in the two cases? (Neglect Friction)
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

As the forces exerted by the two men in boats are the internal forces of the system, therefore, the position of centre of mass remains unchanged. The two boats always meet at the same point which is the centre of mass of the system. It remains unchanged whether both the men pull together or each man pulls separately. However, the boats shall take shorter time to meet when both the men pull together.

Answered by | 04 Jun, 2014, 03:23: PM

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