Asked by jazzy
                The braking distance of a car varies directly as the square of the speed.  If braking distance of a certain car is 49 feet at 30 mph, find the approximate braking distance at 65 mph
            
            
        Answers
                    Answered by
            Damon
            
    well, around four times :)
d = k v^2
49 = k (900)
k = 49/900
d = (49/900)(65)^2 = 230 feet
    
d = k v^2
49 = k (900)
k = 49/900
d = (49/900)(65)^2 = 230 feet
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