A weight of 10kN falls by 30mm on a collar rigidly attached to a vertical bar 4m

Question

A weight of 10kN falls by 30mm on a collar rigidly attached to a vertical bar 4m long and 1000mm² in section. What will be the strain (E=210GPa)?

Options:

A . 0.00089

B . 0.0005

C . 0.00064

D . 0.00098

Answer: Option A
Answer: (a).0.00089

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