A disc rotating about its axis with angular speed omega_(0) is placed lightly (without any translational pull) on a perfectly frictionless table. The radius of the disc is R. What are the linear velocities of the points A, B and C on the disc shown in Fig. Will the disc roll in the direction indicated ?

A disc rotating about its axis with angular speed omega_(0) is placed

1.	A disc rotating about its axis with angular speed omega_(0) is placed lightly (without any translational pull) on a perfectly frictionless table. The radius of the disc is R. What are the linear velocities of the points A, B and C on the disc shown in Fig. Will the disc roll in the direction indicated ?
Answer» Solution :For A `V_(A) = Romega_(0)` in forward direction For `B=V_(B) = Romega_(0)` in backward direction For `CV_(C) = R/2 omega_(0)` in forward direction disc will not roll.