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

Explanation

`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