Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.

Fred sits in his car at a stop light, motionless. As soon as the light turns green, he floors it. Accelerating uniformly, his car reaches a distance d = 150 m past the light after time t = 4 s.

  1. What is Fred's acceleration?
  2. How fast is Fred going after t = 4 s?
  3. What is the average force exerted on Fred's car by the road?
  4. What is the minimum required value for the coefficient of friction between road and tires?

Let's move on ...

Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.