A bike wheel is spun until it reaches an angular velocity of 2.00 rad/s. It was spun for 1.96 s. What was its change in angle during this time if it started from rest?

Answer 1

V = Vo + a*t = 2.0 rad/s.
0 + a*1.96 = 2.0, a = 1.02 rad/s^2.

d = 0.5a*t^2 = 0.51*1.96*2 = 1.96 rad.

(360deg./6.28rad) * 1.96rad = 112.4 deg.
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