Question

A particle of mass 10 kg is revolving in a
uniform circular motion of radius 10 cm in
plane of paper in clockwise direction with
angular velocity 41 rad/sec. a force of
10-4 N acts tangentially to increase its
angular velocity for 5 sec. its angular
velocity at the end of this time is​

Answer 1

Answer:

Max tension in the string when string at the bottom of the vertical ciecle in which both centrifugal ang gravitational force is acting in the same direction as shown in the fiqure

T=mw

2

r+mg=10×5

2

×0.04+10×10=10+100=110N

Hence the correct option is c