The Shortest Stopping Distance

Consider a car moving along a straight horizontal road with a speed of 72km/h 72 \, \text{km}/\text{h} . If the coefficient of kinetic friction between the road and tires is 0.5 0.5 , find the shortest distance over which the car can be stopped in meters.

Take g=10 m/s2.g = 10\ \text{m}/\text{s}^2.

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