An open knife of mass m is dropped from a height h on a wooden flo | Filo
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Class 11

Physics

Mechanics

Work, Energy and Power

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

Correct Answer: Option(a)
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