Answer to Question #278386 in Math for jimmy

Question

A pile driver of mass 180 Kg falls freely through a distance of 6 metres to strike a pile of 500 Kg and drive it 100mm into the ground. The hammer does not rebound when driving the pile.

Determine the average resistance of the ground

solve the problem in two ways.

a)  By making use of the principle of conservation of momentum and D’Alembert’s principle.

b ) By making use of the principle of conservation of energy.