A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds. What is its angular acceleration?

A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds.

1.	A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds. What is its angular acceleration?
A.	10.475 rad/s2
B.	11.475 rad/s2
C.	12.475 rad/s2
D.	13.475 rad/s2
Answer» B. 11.475 rad/s2

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