If A→ is a vector of magnitude 5 units due east. What is the magnitude and direction of a vector - 5A→?

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5 units due east

25 units due west

5 units due west

25 units due east

answer is B.

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Detailed Solution

A→ = 5 units due east-5A→ = -5(5 units due east) = -25 units (due east = 25 units due west)

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