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A lift of mass 2000 kg is supported by t...

A lift of mass 2000 kg is supported by thick steel ropes . If maximum upward acceleration of the lift be `1.2 m//s^(2)` , and the breaking stress for the ropes be
`2.8 xx 10^(8) Nm^(-2)`
what should be the minimum diameter of rope ?

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SL ARORA-Laws of Motion-Exercise
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