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Warmacblu
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Homework Statement
A wheel rotating with a constant angular acceleration turns through 22 revolutions during a 9 s time interval. Its angular velocity at the end of this interval is 15 rad/s.
What is the angular acceleration of the wheel? Note that the initial angular velocity is not zero.
Homework Equations
w = omega
a = alpha
wf = wi + at
theta = wit + 1/2at2
The Attempt at a Solution
wf = 15
wi = ?
a = ?
theta = 2pi * 22 = 128.23
t = 9
So I have two unknowns and two equations but I can't seem to solve for the two equations. Both equations have two unknowns in them which is throwing me off. Any help is appreciated.
Thanks