Answer to Question #74721 in Mechanical Engineering for Khalid
A pile driver hammer of mass 272 kg falls freely through a distance of 4.2 m to strike a pile of mass 516 kg and drives it 75 mm into the ground. The hammer does not rebound when driving the pile. Determine the average resistance of the ground. (Use D’Alembert’s principle and compare the principle of Conservation of Energy when solving the problem).
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