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Academics – Applied Mechanics : 2024/MAR/03
Question

Q3. A 1000 kg pile driver freely falls vertically and drives a 180 kg post into horizontal ground to a vertical depth of 700 mm with no rebound. The average resisting force of the ground is 48 kN.

Calculate EACH of the following:

(a) the initial vertical height of the pile driver above the post (14)

(b) the percentage kinetic energy loss on impact. (2)

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