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 maximum instantaneous elongation in the vertical bar if E = 200GPa?

Options:

A . 0.245mm

B . 0.324mm

C . 0.452mm

D . 0.623mm

Answer: Option C
Answer: (c).0.452mm

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