Question

two men stand facing each other on two boats floating on still water at a distance apart .a rope is held at its end by both. the two boats are found to meet always at the same point whether each man pulls separately or both full together, why? will the time taken with different in the two cases? neglect friction.

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Answer 1

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The men on the two boats floating on water constitute a single system. So the force applied by the two men are internal forces. Whether each Man pulls separately or both pull together, the centre of mass of the system of boats remains fixed due to the absence of any external force .Consequently, the two boats meet at a fixed point, which is the centre of mass of the system.

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Answer 2

Hey Mate...

Here is your

Answer..

If I am right then you're trying to ask if there are two equal and opposite forces why do they not cancel each other when you try to move an object.

When you try to move a mass you apply a force on it. According to Newton’s third law of motion, that mass also applies an equal force on you in the opposite direction, on you.

Yes, there are two forces and yes, they are opposite and equal to each other. But these two forces are not on same mass. You apply a force on the object. The object applies a force on you, not on itself.

Thank You..