A load of 100N falls through a height of 2cm onto a collar rigidly attached to t

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A load of 100N falls through a height of 2cm onto a collar rigidly attached to the lower end of a vertical bar 1.5m long and of 105cm² cross- sectional area. The upper end of the vertical bar is fixed. What is the strain energy stored in the vertical bar if E = 200GPa?

Options:

A . 2.045 N-m

B . 3.14 N-m

C . 9.4 N-mm

D . 2.14 N-m

Answer: Option A
Answer: (a).2.045 N-m

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