Question 260094
Find the rate of speed of a car that left a 150 feet skid mark. Round to the nearest whole number and solve the formula for L.
r=2√5*L
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L = r/(2sqrt(5)
L = 150/(2sqrt(5)
L = 75/sqrt(5
L = 75*sqrt(5)/5
L = 15*(sqrt(5))
L  is approximately 33 mph

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Cheers,
Stan H.