Question

A race car travels on a circular track at an average rate of 125 mi/h. The radius of the track is 0.320 miles. What is the centripetal acceleration of the car? 391 mi/h2 40.0 mi/h2 5,000 mi/h2 48,800 mi/h2

Answer 1

48,800 mi/h2 is the right answer

Answer 2

`a_(centrip)= (v^2)/(R)= (125^2 )/(0.32)=48828 (mi)/(h^2)`
The last one is the closest