What is the maximum speed with which a 1200-kg car can round a turn of radus 84.0 m on a flat road if the coefficient of static friction between tires and road is 0.60. express your answer to two significant figures and include the apprepriate units.

Explanation:

It is given that,

Mass of the car, m = 1200 kg

Radius of circular path, r = 84 m

The coefficient of static friction between tires and road is 0.60

Static friction is given by :

..............(1)

When an object is moving in a circular path, the centripetal force will act on it. It is given by :

Let v is the maximum speed of the car. From equation (1) and (2) as :

g = acceleration due to gravity

v = 22.22 m/s

or

v = 22 m/s

Hence, this is the required solution.