there is a disc rotating with an initial angular velocity of w0.... it is place between the lower surface of an inclined plane and the ground ... the ground and surface of inclined plane have a coeff of friction =1/3 and 1/4 respetively... give an expression 4 the time required to stop the disc from rotating
(assume mass of disc is "m", radius of disc is "r" , acc due to gravity is "g" )