Consider a phonograph turntable rotating at 45 rpm. Asilver dollar (25g) rests at 8.0 cm from the axis ofrotation. The coefficent of static friction is .19 betweenthe coin and turntable.
a. angular and tangential speeds of coin - .377 m/s
b. Necessary centripetal force on the coin - .0444 N
c. When power removed angular acceleration and displacement --.075 pie rad/s
d. What are thetangential acceleration and displacement of the coin?
e. What is the totalacceleration experienced by the coin at the instant the turntablebegins to stop? (The deceleration has begun but the angularvelocity has not yet started to change)


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