Chapter 3, Problem 2MCQ

You apply the brakes of your car abruptly and your book starts sliding off the front seat. Three observers explain this differently. Observer A says that the book continued moving and the car accelerated from underneath it. Observer B says that the car pushed forward on the book. Observer C says that she must be in a noninertial reference frame because the book started moving without any extra objects interaction with it. Which of the observers is correct?

a. A

b. B

c. C

d. A and C

e. All of the observers