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Vector Addition

In the given ...

Question

In the given diagram, if PQ $=$ A, QR $=$ B and RS $=$ C, then PS will be equal to :

A

A - B + C

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B

A + B - C

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C

A + B + C

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D

A - B - C

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E

- A - B - C

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Solution

The correct option is D $A + B + C$
According to polygon law of vector addition
$A + B = P R$
and $P R + R S = P S$
$\Rightarrow A + B + C = P S$ .

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