The maximum instantaneous extension, produced by an unknown falling weight throu

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Question

The maximum instantaneous extension, produced by an unknown falling weight through a height of 4cm in a vertical bar of length 3m and of cross section area 5cm². What will be the instantaneous stress induced in the vertical bar and the value of unknown weight if E = 200GPa?

Options:

A . 1700 N

B . 1459.4 N

C . 1745.8 N

D . 1947.5 N

Answer: Option C
Answer: (c).1745.8 N

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