engineering recuitment GATE ME 2023-24 Test Series Strength of Materials Simple Stress and Strain Stress and Strain
Aluminum rod with original length I0 is strained. The length of the rod at any instant is given by L(t) = L0(1 + t2), where t is in minutes. The true strain rate at the end of 3 minutes will be:
1
9
2
0.9
3
0.6
4
6