A stone of of mass 0 .25 kg tied to the end of a string is whirled round in a circle of radius 1.5
Channel: Doubtnut
Date: 2020-08-02

A stone of of mass 0 .25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with a speed of `40 rev//min` in a horizontal plane What is the tension in the string ? What is the maximum speed with which the stone can be whirled around If the string can withstand a maximum tension of 200 N ?