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A 500kg boat has an initial speed of $10 m s^{- 1}$ as it passes under a bridge. At that instant a 50 kg man jumps straight down into the boat from the bridge. The speed of the boat after the man and boat attain a common speed is

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10011ms−1

1011ms−1

5011ms−1

511ms−1

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detailed solution

Correct option is A

V1=MVM+m=500×10500+50=500×10550=10011ms−1

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A 500kg boat has an initial speed of 10ms−1 as it passes under a bridge. At that instant a 50 kg man jumps straight down into the boat from the bridge. The speed of the boat after the man and boat attain a common speed is

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Ready to Test Your Skills?

free study material

A 500kg boat has an initial speed of $10 m s^{- 1}$ as it passes under a bridge. At that instant a 50 kg man jumps straight down into the boat from the bridge. The speed of the boat after the man and boat attain a common speed is