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When vecAcdotvecB=-vecAvecB, the two vec...

When `vecAcdotvecB=-vecAvecB`, the two vectors are

A

Positive

B

Negative

C

anitparallel

D

parallel

Text Solution

Verified by Experts

The correct Answer is:
C
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MBD PUBLICATION-VECTOR ANALYSIS-QUESTION BANK
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  2. The minimum number of unequal vectors which can give zero resultant is

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  3. When vecAcdotvecB=-vecAvecB, the two vectors are

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  4. If vecA xx vecB=vecC then

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  5. Unit vector (vecA xx vecB)/(abs (vecA xx vecB)) is perpendicular to

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  6. The scalar product of two vector a = 3vechati-4vechatj+vechatk and ve...

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  7. When two forces 5 kg wt and 10 kg wt act with inclination of 120^@ bet...

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  8. To a man going east in a car with velocity of 40 km/h., a train appear...

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  9. A boat which has a speed of 5 km/hr in still water crosses a river of ...

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  10. A particle A is moving along a straight line with velocity 3 m/s and a...

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  11. Volume is

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  12. Which is vector quantity

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  13. Which is only vector quantity out of the following

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  14. If vecA and vecB are two vectors then the correct statement is

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  15. Dot or scalar product two vectors vecA=2hati-3hatj+hatk and vecB=2hatj...

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  16. If hatn is a unit vector in the direction of vector vecA, then

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  17. If vecA=vecB+vecC and magnitude of vecA, vecB and vecC are 5, 4 and 3...

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  18. Dot or saclar product of the vectors vecA=2hati-3hatj+hatk and vecB=3...

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  19. Let A=i A costheta+ j A sintheta ( is a vector. Another vector B is w...

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  20. The co-ordinates of a moving particle at any time t are give by x = at...

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