Question

A particle of mass 2 kg is rotating by means of a string in a vertical circle. The difference in the tensions at the bottom and the top would be

(A) 12 kg wt

(B) 2 kg wt

(C) > 12 kg wt

(D) < 12 kg wt

Answer 1

Answer is (A) 12 kg wt

Difference in tensions = 6 mg = 6 x 2 x 9.8

= 12 kg wt