The acceleration with which an object of...

The acceleration with which an object of mass 100 kg be lowered from a roof using a cord with a breaking strength of 60 kg weight without breaking the rope is- (assume g = 10 m/sec2)

`2m//sec^(2)`

`4m//sec^(2)`

`6m//sec^(2)`

`10m//sec^(2)`

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