Question

A race car rounds one end of a speedway. This end of the track is a turn with a radius r of approximately 187 ft.

If the track is assumed to be completely flat and the race car is traveling at a constant 67.00 mi/h around the turn, what is the race car's centripetal (radial) acceleration ac?

1) ac= ft/s2

Convert this result to SI units.

2) ac= m/s2

3) What is the force responsible for the centripetal acceleration in this case?

normal

friction

weight

gravity

4) To keep from skidding into the wall on the outside of the turn, what is the minimum coefficient of static friction μs between the race car's tires and the track?

μs=

Answer 1

Do let me know in case of any mistake.. I will rectify it asap .

Thank you...