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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