A weightless thread can bear tension upto 3.7 kgwt. A stone of mass 500 gm is tied to it and rotated in a circular path of radius 4m, in a vertical circle.
If g=`10m/s^2` then what is maximum angular velocity of the dtone.

Explanation

`T_(max)mg + mrw^2`
`thereforew^2=(T_max-mg)/(mr)=(3.7xx10-5xx10^(-1)xx10)/(5xx10^(-1)xx4`
`w^2=16` and w = 4 rad/s.