Question

stone of mass 5 kg tied to one end of a rope of clean 0.8 metre is added in a vertical circular find the minimum velocity at the highest point at the mediaeval.​

Answer 1

At the highest point the following equation will represent the forces acting on it

Mg + T = Mv2/r

At highest point Tension will be 0 in any vertical circle

Mg + 0 = mv2/r

V = root of rg