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Two vector vecA=2hati+3hatj-4hatk and ve...

Two vector `vecA=2hati+3hatj-4hatk` and `vecB=4hati+8hatj+xhatk` are such that the component of `vecB` along `vecA` is zero. Then the value of the x will be

A

8

B

-4

C

4

D

-8

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The correct Answer is:
A
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PATHFINDER-VECTOR-I AND VECTOR-II-QUESTION BANK
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  10. The angle between veca and vecb is 0^@ then angle between 2veca and -3...

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  11. If theta be the angle between the vectors hati+hatj and 2hatj+2hatk, t...

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  12. Scalar projection of the vector 2hati+3hatj+2hatk on the vector hati-2...

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  14. Vector vecA of magnitude 4 units is directed along the positive x-axis...

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  15. If two vectors vecC=vecA+vecB and vecD=vecA-vecB are at right angle to...

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  16. The resultant of two forces vecF1 and vecF2 is P. If vecF2 is reversed...

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  17. The X and Y=component of vecP and 7hati and 6hatj Also, the X and Y-co...

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  18. Two vector vecA=3hati+8hatj-2hatk and vecB=6hati+16hatj+xhatk are such...

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