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A $50 k g$ man is standing at one end of a $25 m$ long boat. He starts running towards the other end. On reaching the other end his velocity is $4 m s^{- 1}$ . If the mass of the boat is $250 k g$ , final velocity of the boat is ( in $m s^{- 1}$ )

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detailed solution

Correct option is B

mVm=(M+m)Vb Vb=mVmM+m=50×4300 =23

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A 50kg man is standing at one end of a 25m long boat. He starts running towards the other end. On reaching the other end his velocity is 4ms−1 . If the mass of the boat is 250kg , final velocity of the boat is ( in ms−1 )

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Ready to Test Your Skills?

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A $50 k g$ man is standing at one end of a $25 m$ long boat. He starts running towards the other end. On reaching the other end his velocity is $4 m s^{- 1}$ . If the mass of the boat is $250 k g$ , final velocity of the boat is ( in $m s^{- 1}$ )