Question

Calculate the force to your face when you step on the tines of a rake.

Calculate the force to your face when you step on the tines of a rake.

Science   Advanced-Physics   
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Answer #1

Assuming that the Handle of the rake has a length l, and the length of the tines is lt. Then when we step on it, our weight acts perpendicularly to the surface of tines, generating a torque given by,

This torque is generated about the point where the handle and tines joins, When it hits your face, a force is transmitted at a distance of length l, due to the previously generated torque, This force can be calculated by,

Hence the amount of force on your face is,

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