What will be the amount of axial pull be applied on a a 4cm diameter bar to get

Question

What will be the amount of axial pull be applied on a a 4cm diameter bar to get an instantaneous stress value of 143 N/mm²?

Options:

A . 50kN

B . 60kN

C . 70kN

D . 80kN

Answer: Option B
Answer: (b).60kN

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