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The vectors 5hati+8hatj and 2i+7hatj are...

The vectors `5hati+8hatj` and `2i+7hatj` are added. The magnitude of the sum of these vector is

A

`sqrt(274)`

B

38

C

238

D

560

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The correct Answer is:
A
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ERRORLESS -VECTORS-Exercise
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  11. If AxxB=BxxA then the angle between A and B is

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  12. If vecA=3hati+hatj+2hatk and vecB=2hati-2hatj+4hatk then value of |vec...

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  13. The torque of the force vecF=(2hati-3hatj+4hatk)N acting at the point ...

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  14. If vecAxxvecB=vecC, then which of the followig statements is wrong

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  15. If a particle of mass m is moving with constant velocity v parallel to...

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  16. Consider two vectors vecF(1)=2hati+5hatk and vecF(2)=3hatj+4hatk. The ...

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  17. Consider a vector vecF=4hati-3hatj. Another vector that is perpendicul...

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  18. Two vector vecA and vecB are at right angles to each other, when

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  19. If |vecV(1)+vecV(2)|=|vecV(1)-vecV(2)| and V(2) is finite, then

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