SOLUTION: "The distance a pickup truck requires to stop varies directly with the square of the speed. A pickup truck traveling on dry pavement can stop in 85 feet when traveling at 55 miles

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Question 687639: "The distance a pickup truck requires to stop varies directly with the square of the speed. A pickup truck traveling on dry pavement can stop in 85 feet when traveling at 55 miles per hour. What distance will the truck take to stop if its traveling at 70 miles per hour?"
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
"The distance a pickup truck requires to stop varies directly with the square of the speed.
d = k*s
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Solve for "k" using "A pickup truck traveling on dry pavement can stop in 85 feet when traveling at 55 miles per hour."
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85 = k/55
k = 55*85 = 4675
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Equation:
d = 4675/s
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What distance will the truck take to stop if its traveling at 70 miles per hour?"
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d = 4675/70
distance = 66.79 feet
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Cheers,
Stan H.
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