A 10 kg stone is suspended with a rope o...

A 10 kg stone is suspended with a rope of breaking strength 30 kg-wt. The minimum time in which the stone can be raised through a height 10 m starting from rest is (Take, `g = 10 N kg^(-1)`).

0.5s

1.0s

`sqrt((2)/( 3)) s `

2.0s

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