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InterviewSolution
| 1. |
What force will be required to stretch a steel wire 1cm square thick... |
| Answer» Young’s modulus (Y) can be written asY = FL / (Ae)Rearrange the above equationF = YAe / L= YAL / L ………[∵ Elongation (e) = L]= YA= 2 × 1011 N / m² × [1 cm² × 10^-4 m²/cm²]= 2 × 107 NForce required is 2 × 107 N\xa0 | |