Asked by Glam

Vector A has length 4 units and directed to the north. Vector B has length 9 units and is directed to the south. Calculate the magnitude and direction of A+B.
Answered by drwls
The two vectors are in opposite drections.
If you let positive denote north, the vector sum is 4 - 9 = -5 units.

That means 5 units south.
Answered by JONATHAN
5 units due north
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