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A wooden pile of mass m=3kg is driven in...

A wooden pile of mass `m=3kg` is driven into the driven into the ground by suceessive blows from a hammer of mass `M=10kg` falling from a height `h=3`m on the head of the pile. If under the action of a single blow the pile penetrates a distance `delta = 5` cm, determine the resistance R to penetration.

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