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Sophie [7]
3 years ago
9

A rod that was originally 100-cm-long experiences a strain of 82%. What is the new length of the rod?

Engineering
1 answer:
Ierofanga [76]3 years ago
8 0

Answer: (b)

Explanation:

Given

Original length of the rod is L=100\ cm

Strain experienced is \epsilon=82\%=0.82

Strain is the ratio of the change in length to the original length

\Rightarrow \epsilon =\dfrac{\Delta L}{L}\\\\\Rightarrow 0.82=\dfrac{\Delta L}{100}\\\\\Rightarrow \Delta L=82\ cm

Therefore, new length is given by (Considering the load is tensile in nature)

\Rightarrow L'=\Delta L+L\\\Rightarrow L'=82+100=182\ cm

Thus, option (b) is correct.

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You are turning onto a two-lane road divided by a broken yellow line. You know immediately that:

Answers

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