Physics

A spinning wheel steadily slows from an initial angular velocity of 1.65 rev/s to 0.485 rev/s in 12.2 s.
(a) Calculate the wheel's angular acceleration in radians per second squared.
rad/s2

(b) What angle does it go through during that time?
rad

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  1. acceleration=(wf-wi)/time
    = 2PI(.485-1.65)/12.2

    displacement (radian)=avgspeed*time
    = 2PI(wf+wi)/2 * 12.2

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