SOLUTION: Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 2020 miles per hour can stop in 3030 feet. If the van is traveling 2828 mil
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Question 1085785: Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 2020 miles per hour can stop in 3030 feet. If the van is traveling 2828 miles per hour, what is its stopping distance?
If the van is traveling 2828 miles per hour, the stopping distance Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 20 miles per hour can stop in 30 feet. If the van is traveling 28 miles per hour, what is its stopping distance?
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d = k*v^2
30 = k*20^2 = 400k
k = 30/400 = 3/40
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At 28 mi/hr
d = (3/40)*28^2 = = 2352/40 ft
d = 58.8 ft
