A 50. cm diameter wheel is rotating initially at 2.0 revolutions per second. It slows down uniformly and comes to rest in 15 seconds
(a) What was its angular acceleration?
(b) Through how many revolutions did it turn in those 15 s?
(a) -0.13 rev/s2 = -0.84 rad/s2
(b) 15. rev
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