An automobile club plans to race a 740 kg car at the local racetrack. The car needs to be able to travel around several 145 m radius curves at 83...

An automobile club plans to race a 740 kg car at the local racetrack. The car needs to be able to travel around several 145 m radius curves at 83 km/h. What should the banking angle of the curves be so that the force of the pavement on the tires of the car is in the normal direction? (Hint: What does this requirement tell you about the frictional force?)