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Asked by pratham.k | 17 Jun, 2020, 12:25: PM
answered-by-expert Expert Answer
As per the conservation of angular momentum 
Velocity of block when string become taut
 
V equals square root of 2 g h end root T o t a l space h e i g h t space equals l V equals square root of 2 g l end root w h e n space t h e space s t r i n g space b e c o m e space t a u t space m v r equals I omega M square root of 2 g l end root cross times R equals fraction numerator 2 M R squared over denominator 2 end fraction omega omega equals fraction numerator square root of 2 g l end root over denominator R end fraction
Answered by Utkarsh Lokhande | 17 Jun, 2020, 16:35: PM

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