Acompact disc stores music in a coded pattern of tinypits 10^(-7) m deep. the pits are arranged in a track thenspirals outward toward the rim of the disc; the inner and theouter radii of this spiral are 25.0 mm and 58.0 mmrespectively. as the disc spins inside a cd player, the trackis scanned at a constant linear speed of 1.25 m/s
a)what is the angular speed of the cd when scanning theinnermost part of the track? the outtermost part of thetrack?
b)the maximum playing time of a cd is 74.0 minutes. whatwould be the length of the track on such a maximum-duration cd ifit were stretched out in a straight line?
c) what is the average angular acceleration of amaximim-duration cd during its 74.0 minutes playing time? take the direction of rotation of the disc to be positive.