A flat (unbanked) curve on a highway has a radius of 240 m . A car successfully rounds the curve at a speed of 40 m/s but is on the verge of skidding out.
Part A
If the coefficient of static friction between the car’s tires and the road surface were reduced by a factor of 2, with what maximum speed could the car round the curve?
Express your answer in meters per second to two significant figures.
Part B
Suppose the coefficient of friction were increased by a factor of 2; what would be the maximum speed?
Express your answer in meters per second to two significant figures.
