SOLUTION: Police use the formula V (L) = sqrt(20L) to estimate the speed of a car in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking on a dry, asphal
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Question 1154785: Police use the formula V (L) = sqrt(20L) to estimate the speed of a car in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking on a dry, asphalt road.
At the scene of an accident, a police officer measures a car's skid marks to be 229 feet long. Approximately how fast was the car traveling?
_______
One of the people involved in the accident says that he was traveling 48 mph when he braked. How long in feet should his car's skid marks be?
_________
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
approx. 68 mi/hr
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Square both sides
115.2 ft
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