what is the arc length of a point that moves with a constant speed of 60 mph along a circle in 15 minutes.

The arc length is _?_ radians

and

A race car travels around a circular track at a constant speed with a circumference equal to 3 miles. If the car records a time of 10 minutes for 7 laps, what is the linear speed, to the nearest tenth, of the race car in miles per hour?

Guest Mar 22, 2019