Question

A train is traveling in one direction along a straight track. The train is acted on by a known and constant net force for a known time interval. What other information does the student have to know to determine the train’s final velocity?

A mass of train and incline of track
B incline of track and friction of train with track
C mass of train and initial velocity
D friction of train with track and initial velocity

Answer 1

To determine the train's final velocity, the student needs to know the mass of the train and the initial velocity.

Step-by-step explanation:

In order to determine the train's final velocity, the student needs to know the mass of the train and the initial velocity. The mass of the train is important because it affects the net force acting on the train, which in turn determines its acceleration. The initial velocity is necessary to calculate the change in velocity and, ultimately, the final velocity of the train.