document.write( "Question 929035: The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car traveling 20 mph can stop in 20 ft, how many feet will it take the same car to sop when it is traveling 100 mph? \n" ); document.write( "
Algebra.Com's Answer #806945 by CubeyThePenguin(3113)\"\" \"About 
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d:r^2 ---> 20:(20^2) = 100:(x)\r
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\n" ); document.write( "\n" ); document.write( "20/400 = 100/x
\n" ); document.write( "1/20 = 100/x\r
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\n" ); document.write( "\n" ); document.write( "stopping distance = x = 2000 ft
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