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A body of mass 1 kg is tied to a string and revolved in a horizontal circle of radius 1 m. The maximum number of r.p.m made so that the string does not break is ? Breaking tension of the string is 9.86 N |
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Answer» SOLUTION :`T=(mv^2)/R =mrw^2=mrxx4pi^2n^2` `THEREFORE n^2 = T/(4pi^2mr)=10/(4xx10xx1xx1)` `or n^2 = 1/4` or n=1/2 |
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