You are in a train traveling on a horizontal track and notice that a piece of luggage starts to slide directly toward the front of the train.From this observation,you can conclude that this train is
A)speeding up.
B)slowing down.
C)changing direction.
D)speeding up and changing direction.
E)slowing down and changing direction.

Question

Quizplus · Accepted Answer

If the train were speeding up, the luggage would slide towards the back of the train due to inertia. If the train were changing direction, the luggage would slide to one side of the train, not directly towards the front. Therefore, the only logical conclusion is that the train is slowing down.

You Are in a Train Traveling on a Horizontal Track