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Vector Addition

Given A⃗ = - ...

Question

Given $\to A = - \to B$ This means that vectors A and B

A

have equal magnitudes

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B

have unequal magnitudes

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C

are in opposite directions

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D

are in the same direction

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Solution

The correct option is C are in opposite directions

Given $\to A = - \to B$ , i.e. $\to A + \to B = 0$ . Two vectors add up to zero only if they have equal magnitudes and opposite directions.
Hence the correct choices are (a) and (c).

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