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The angle between two vectors -2hati+3ha...

The angle between two vectors `-2hati+3hatj+k` and `hati+2hatj-4hatk` is

A

`0^(@)`

B

`90^(@)`

C

`180^(@)`

D

None of the above

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Verified by Experts

The correct Answer is:
B
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ERRORLESS -VECTORS-Exercise
  1. If |vecV(1)+vecV(2)|=|vecV(1)-vecV(2)| and V(2) is finite, then

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  2. A force vecF=(5hati+3hatj) Newton is applied over a particle which dis...

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  3. The angle between two vectors -2hati+3hatj+k and hati+2hatj-4hatk is

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  4. The angle between the vectors (hati+hatj) and (hatj+hatk) is

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  5. A particle moves with a velocity 6hati-4hatj+3hatk m//s under the infl...

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  6. If vecP.vecQ=PQ then angle between vecP and vecQ is

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  7. A force vecF=5hati+6hatj+4hatk acting on a body, produces a displaceme...

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  8. The angle between the two vectors vecA=5hati+5hatj and vecB=5hati-5hat...

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  9. The vector vecP=ahati+ahatj+3hatj and vecQ=ahati-2hatj-hatk, are perpe...

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  10. A body, constrained to move in the Y-direction is subjected to a force...

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  11. A particle moves in the x-y plane under the action of a force vecF suc...

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  12. The area of the parallelogram represented by the vectors vecA=2hati+3h...

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  13. A vector vecF(1) is along the positive X-axis. If its vectors product ...

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  14. If for two vectors vecA and vecB, vecA xxvecB=0, the vectors

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  15. The angle between (vecAxxvecB) and (vecBxxvecA) is (in radian)

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  16. What is the angle between (vecP+vecQ) and (vecPxxvecQ)

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  17. The resultant of the two vectors having magnitude 2 and 3 is 1. What i...

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  18. Let vec(A)=hat(i)A cos theta+hat(j)A sin theta, be any vector. Another...

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  19. The angle between two vectors given by 6bari+6barj-3bark and 7bari+4ba...

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  20. A vector vecA points vertically upward and vecB points towards north. ...

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