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An open knife edge of mass M is dropped ...

An open knife edge of mass M is dropped from a height h on a wooden floor. If the blade penetrates S into the wood, the average resistance offered by the wood to the blade is

A

mg

B

`mg(1+(h)/(s))`

C

`mg(1-(h)/(s))`

D

`mg(1+(h)/(s))^(2)`

Text Solution

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The correct Answer is:
B
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