## College Physics (4th Edition)

The speed of the car is $118~km/h$
We can find the tangential speed on the edge of a tire, which is equal to the linear speed of the car: $v = \omega~r$ $v = (101~rad/s)(0.325~m)$ $v = 32.8~m/s$ We can convert the speed to units of km/h: $v = 32.8~m/s \times \frac{1~km}{1000~m} \times \frac{3600~s}{1~h}$ $v = 118~km/h$ The speed of the car is $118~km/h$