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A 3 kg melon is balanced on a bald man's...

`A 3 kg` melon is balanced on a bald man's head. His friend shoots a `50 gm` arrow at it with speed `25 m//s.` The arrow passes through the melon and emerges at `10 m//s`. Find the speed of the melon as it flies off the man's head.

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The correct Answer is:
`[0.25 m//s]`
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PHYSICS GALAXY - ASHISH ARORA-LINEAR MOMENTUM & ITS CONSERVATION-unsolved
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