- #1
sukreth
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Homework Statement
The inner and outer radii of a compact disc are 25 mm and 58 mm. As the disc spins inside a CD player, the track is scanned at a constant linear speed of 1.25m/s. The maximum playing time of a CD is 74.0 min. What is the average angular acceleration of a maximum-duration CD during its 74.0-min playing time? Take the direction of rotation of the disc to be positive.
Homework Equations
v=wr
angular acceleration=rw^2
The Attempt at a Solution
I tried to integrate wr somehow, but w is not constant.