Asked by franz

Car A is heading north with a velocity of 14 m/s. Car B is traveling south with a velocity of 19 m/s. What is the relative motion between the two cars?
A. 5 m/s
B. 14 m/s
C. 19 m/s
D. 33 m/s

would this be A, since 19-14 = 5?
Answered by MathMate
Taking the difference is the right approach. However, they are heading in different directions, so the velocities have different signs.
Hope that helps.
Answered by franz
thank you!
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