[单选题]
A car goes around a flat eewwmuzqp 4.xrw r//7n5rp 09curve of radius 50 m at a speed of 14 )). kle*4csh u/ltveec ll- h2m/s. What must be the minimum coefficient of friction between the tires and the rlvsh/)l c *4.h l -etele)kuc2oad for the car to make the turn?
