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 stress induced in the vertical bar if E = 200GPa?

Options:

A . 50.87 N/mm²

B . 60.23 N/mm²

C . 45.24 N/mm²

D . 63.14 N/mm²

Answer: Option B
Answer: (b).60.23 N/mm²

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