alleryStart learning →A car tire of radius 0.300 m is on a car travelling at 15.0 m/s. What is the tire's angular speed?
A0.020 rad/s
B4.50 rad/s
C15.3 rad/s
D50.0 rad/s
Answer & Solution
Correct answer: D. 50.0 rad/s
1. Rearrange v = r omega to get omega = v / r.
2. omega = 15.0 m/s / 0.300 m.
3. omega = 50.0 rad/s.
_Source: OpenStax Physics (CC BY 4.0), Ch 6 "Circular and Rotational Motion", section 6.1 Angle of Rotation and Angular Velocity_
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