SOLUTION: v = √ 20 L to estimate the speed of a car, v , in miles per hour, based on the length, L , in feet, of its skid marks when suddenly braking on a dry, asphalt road.

Question 1197009: v
=
√
20
L

to estimate the speed of a car,
v
, 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 105 feet long. Approximately how fast was the car traveling? Round your answer to the nearest tenth (one decimal place) of a unit.

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi  
v =   v is the speed 
L the length in feet of the skid mark when suddenly braking on a dry, asphalt road
Question States:
Skid marks to be 105 feet long
Approximately how fast was the car traveling? 
v =   = 45.8 mi/hr  (to the nearest tenth)

Wish  You the Best in your Studies.

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