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If vec(A) is a vector of magnitude 4 un...

If `vec(A)` is a vector of magnitude 4 units due east. What is the magnitude and direction of a vector ` - 4 vec(A)` ?

A

4 units due east

B

8 units due east

C

16 units due east

D

16 units due west

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The correct Answer is:
D
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