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LTZach
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Homework Statement
A bicycle wheel has an angular acceleration of 1.4 rad/s^2. If a point on its rim has a tangential acceleration of 49 cm/s^2, what is the radius of the wheel?
Answer in units of m.
Homework Equations
ac=r*a
The Attempt at a Solution
49 cm/s^2=.49m/s^2
r=ac/a=2.8571
But the answer is wrong, where did I mess up?