Asked by John

If a car is traveling downhill at 45 miles per hour on dry pavement, then the braking distance B is

B = 45/(0.4+m), where m<0 is the slope of the road.

Find the slope of the road if the braking distance is 125 feet.

Answers

Answered by Steve
125 = 45/(0.4+m)
0.4+m = 45/125
m = 45/125 - 0.4
m = -0.04
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