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Q2. A pile driver has a mass of 600 kg and drops 5 m vertically onto a pile with a mass of 2000 kg. The pile is driven 110 mm into the ground before coming to rest. Calculate EACH of the following:

(a) The common velocity of the pile driver and pile immediately after impact assuming no rebound;

(b) The average resisting force of the ground on the pile;

(c) The reduction of kinetic energy during the impact.