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A steel rod has a radius 10 mm and a le...

A steel rod has a radius 10 mm and a length of 1.0 m. A force stretches it along its length and produces a strain of `0.32%`. Young's modulus of the steel is `2.0xx10^(11Nm^(-2)`. What is the magnitude of the force stretching the rod?

A

100 KN

B

314 KN

C

31.4 KN

D

200 KN

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