Police use the formula: v=V20L
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 175 feet long. Approximately how fast was the car traveling? Round your
answer to the nearest tenth (one decimal place) of a unit.
The car was traveling at approximately
miles per hour.