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A disk rotating at 8 rad/s is accelerated at the rate of 1.8 rad/s2 for 7 s.

(a) What is its new angular speed?

(b) Find the angle through which it rotated during the acceleration.

(c ) What is the speed of a point on the rim of the disk before the acceleration?

(d) What is the tangential acceleration of this point? at = 0.216 m/s2

(e) What is the radial acceleration of this point?

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