SOLUTION: The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car is traveling 60 mph can stop in 200 feet, how many feet will it

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Question 477145: The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car is traveling 60 mph can stop in 200 feet, how many feet will it take the same car to stop when it is traveling 50 mph?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
200/60^2=n/50^2
200x50^2=nx60^2
500000=3600n
n=500000/3600=138.88 ft..