Questions 2-3
At time t=0, car X traveling with speed v 0 passes car Y . which is just starting to move. Both cars then travel on two parallel lanes of the same straight road. The graphs of speed v versus time t for both cars are shown above.
3 From time t=0 to time t=40 seconds, the areas under both curves are equal. Therefore, which of the following is true at time t=40 seconds?
(A) Car Y is behind car X .
(B) Car Y is passing car X.
(C) Car Y is in front of car X .
(D) Both cars have the same acceleration.
(E) Car X is accelerating faster than car Y .