Question

A digital audio compact disc carries data along a continuous spiral track from the inner circumference of the disc to the outside edge. Each bit occupies 0.60 mm of the track. A CD player turns the disc to carry the track counter-clockwise above a lens at a constant speed of 1.16 m/s. (d) Assuming the acceleration is constant, find the total angular displacement of the disc as it plays from the outside at 2.40 cm to the inside at 6.20 cm.