A train travels due south at 60 m/s. It reverses its direction and travels due north at 60 m/s. What is the change in velocity of the train?
A)120 m/s, due north
B)120 m/s, due south
C)60 m/s, due north
D)60 m/s, due south
E)zero m/s

Question

Quizplus · Accepted Answer

The change in velocity is the final velocity minus the initial velocity. The initial velocity is 60 m/s south, and the final velocity is 60 m/s north. The change in velocity is 60 m/s north - (-60 m/s south) = 120 m/s north.

A Train Travels Due South at 60 M/s