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. How much work has the road done on Fred's car?
  2. How much work has the car done on Fred?

Let's move on ...

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