Rona was driving on an asphalt road that had a 30 mph speed limit posted. A deer jumped out from the side of
the road causing Rona to slam on her brakes. Her tires left three skid marks of lengths 68 feet, 66 feet, and 67
feet. The road had a drag factor of 0.45. Her brakes were operating at 95% efficiency. The police gave Rona a
ticket for speeding. Rona insisted she was driving under the limit.
a. Calculate the speed of Rona's car based on the skid speed formula.
b.
Who was correct? (The police or Rona) Explain.