MHT CET Physics question
A lift is tied with thick iron ropes having mass 'M'. The maximum acceleration of the lift is 'a' m/s² and maximum safe stress is 'S' N/m². The minimum diameter of the rope is (g = acceleration due to gravity) [MHT-CET 2021]
Answer: (C)
Solution
Maximum tension is and stress gives \frac{4M(g+a)}${π
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