Question

why do we need less effort to drive in a screw through a piece of wood rather than to hammer a nail?
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Answer 1

Answer:

when we hammer a nail we fix it by pushing wood fibers down but they don't have moch space to move but when we drive a screw, screw make fibers to move aside which is easier to compress them by hammering.

Explanation:

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Answer 2

Answer:

when we hammer a nail we fix it by pushing wood fibers down but they don't have moch space to move but when we drive a screw, screw make fibers to move aside which is easier to compress them by hammering

Explanation:

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