3 When one is driving on dry asphalt the distance in feet d

3. When one is driving on dry asphalt, the distance in feet, d, to stop a car going S miles per hour is modeled by the formula S=sqrt(22.5d) If Mark\'s car is going down a street made of asphalt and he is driving at 25mph and slams on the brakes, how far, to the nearest foot, will the car skid before it comes to a stop?

Solution

S = sqrt(22.5d)

S = 25mph

25 = sqrt(22.5d)

625 = 22.5d

d = 27.78 miles the car will skid before it comes to a stop.