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The vector vecB=5hati+2hatj-Shatk is per...

The vector `vecB=5hati+2hatj-Shatk` is perpendicular to the vector `vecA=3hati+hatj+2hatk` if S=

A

1

B

4.7

C

6.3

D

8.5

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The correct Answer is:
D
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ALLEN-BASIC MATHS-EXERCISE-1
  1. The magnitude of the vector product of two vectors vecA and vecB may n...

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  2. If vecPxxvecQ=vecR, then which of the following statements is not true...

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  3. The vector vecB=5hati+2hatj-Shatk is perpendicular to the vector vecA=...

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  4. Electro motive force (EMF) is :

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  5. A physical quantity which has a direction:-

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  6. Which of the following physical quantities is an axial vector ?

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  7. The minimum number of vectors of equal magnitude required to produce a...

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  8. How many minimum number of coplanar vector having different magnitudes...

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  9. How many minimum number of coplanar vector having different magnitudes...

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  10. What is the maximum number of components into which is vector can be s...

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  11. What are the maximum number of (i) rectangular component vectors (ii)c...

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  12. What is the maximum number of rectangular components into which a vect...

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  13. The vector sum of the forces of 10 newton and 6 newton can be:

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  14. Vector sum of two forces of 10N and 6N cannot be:

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  15. The unit vector along hati+hatj is :

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  16. What is the projection of vecA on vecB ?

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  17. What is the angle between vecA and the rsultant of (vecAhatB) and (vec...

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  18. The angle between vectors (hati+hatj) and (hatj+hatk) is :

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  19. The angle between two vectors given by (6hati+6hatk) and (7hati+4hatj+...

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  20. Which of the following vector identies is false ?

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