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The unit vector parallel to the resultan...

The unit vector parallel to the resultant of the vectors `vecA=4hati+3hatj+6hatk` and `vecB=-hati+3hatj-8hatk` is

A

Velocity, speed

B

Pressure, stress

C

Force, impulse

D

Work, energy

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A, B, D
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ALLEN-BASIC MATHS-Exercise-02
  1. Two vectors vecA and vecB are such that vecA+vecB=vecA-vecB. Then

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  2. The angle between vectors (AxxB)and(BxxA) is

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  3. The unit vector parallel to the resultant of the vectors vecA=4hati+3h...

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  4. A vector A points vertically upward and B points towards north.The vec...

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  5. Which of the following sets of concurrent force may be in equilibrium?

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  6. The magnitude of resultant of two equal forces is double the magnitude...

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  7. A force (3hati+4hatj) newton acts on a boby and displaces it by (2hati...

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  8. If vector vecP=a hati + a hatj +3hatk and vecQ=a hati -2 hatj -hatk ...

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  9. The vector sum of two forces is perpendicular to their vector differen...

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  10. Vectors vecA, vecB and vecC are such that vecA.vecB=0 and vecA.vecC=0....

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  11. Two physical quantities A and B different dimensions. Which mathematic...

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  12. If the dimensions of a physical quantity are given by ["M"^(a)"L"^(b)"...

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  13. If E , M , J , and G , respectively , denote energy , mass , angular m...

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  14. The dimensions of (1)/(2)epsilon(0)E^(2), where epsilon(0) is permitti...

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  15. In terms of basic units of mass (M) , length (L) , time (T) and charge...

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  16. The dimension of magnetic field in M, L, T and C (Coulomb) is given as

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  17. The density of material in CGS system of mass is 4g cm^(3) in a system...

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  18. Dimensional formula of DeltaQ, heat supplied to the system is:

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  19. Dimensions of 1(mu(0)epsilon(0)) where symbols have their usual meanin...

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  20. The dimensions of the quantity vecE xx vecB, where vecE represents the...

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