# What was the average resisting force exerted on the bullet that penetrated a large wooden fence post?

A 0.0050-kg bullet traveling with a speed of 200 m/s penetrates a large wooden fence post to a depth of 0.030 m. What was the average resisting force exerted on the bullet?

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To solve for the acceleration (deceleration, actually) of the bullet, use this ...

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The solution provides explanations in solving the problem.

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