Question

A stone of mass 0.3 kg tied to the end of a string in a horizontal plane is world around in a circle of radius 1 metre what is the maximum speed with which the stone can be world and only if the string can with stand a maximum tension of 200 newton

Answer 1

Tension in the string provides the centripetal force

Tmax = 200N

200N = mv^2 / r

Sq.rt.2000/3 = v

vmax = 25.82 m/s