a body of mass 0.4 kg is attached to a string of 1.2m long and then whirled around horizontally to make 120 revolutions per minute find angular velocity and linear velocity.

Hey Frnd Here is your answer:

Mass, M = 0.4 kg , Radius R = 1.2m, frequency = 120 revolutions per minute

Now, Angular Velocity = (120 * 2*3.14)/60 = 4*3.14= 12.56 rad s^-1

And,

Linear Velocity (v)= r * = 4*3.14*1.2 = 15.072 m s^-1

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