A 2500-N pile driver ram falls 10 m and drives a post 0.1 m into the ground.The average force on the post is

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Quizplus · Accepted Answer

The work done by the pile driver is equal to the gravitational potential energy lost, which is 2500 N * 10 m = 25,000 J. This work is also equal to the force exerted on the post times the distance the post is driven into the ground (0.1 m). Therefore, the average force is 25,000 J / 0.1 m = 250,000 N.

A 2500-N Pile Driver Ram Falls 10 M and Drives