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The mass of a boat is M = 80 kg, the mas...

The mass of a boat is M = 80 kg, the mass of a boy is m = 36 kg. The boy moves from the stern to the bows of the boat. What distance does the boat move, if its length is l = 2.8 m? At such low speeds the water resistance may be neglected.

Text Solution

Verified by Experts

The correct Answer is:
87 cm
Using the fact that the centre of mass remains at rest, we obtain
`m(l-x)=Mx`
Hence the displacement of the boat cited in the answer.
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