Police use the formula VL equals square root 20 L to estimate the speed of a car in miles per hour based on the length and feet of its skidmarks, when suddenly breaking on a dry asphalt road

At the scene of an accident a police officer measures a cars skidmarks to be 189 feet long, approximately how fast with the car traveling

Of the people involved in the accident say that he was traveling 53 mph when he break how long and feet should his car skidmarks be