A plane traveling north at 200 m/s turns and then travels south at 200 m/s. The change in its velocity is:
A) zero
B) 200 m/s north
C) 200 m/s south
D) 400 m/s north
E) 400 m/s south

Question

Quizplus · Accepted Answer

The change in velocity is the final velocity minus the initial velocity. The initial velocity is 200 m/s north, and the final velocity is 200 m/s south. The change in velocity is 200 m/s south - 200 m/s north = 400 m/s south.

A Plane Traveling North at 200 M/s Turns and Then