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The angle between Ai +j and B = i-j is...

The angle between Ai +j and B = i-j is

A

`45^(@)`

B

`90^(@)`

C

`-45^(@)`

D

`180^(@)`

Text Solution

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The correct Answer is:
B
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SURA PUBLICATION-KINEMATICS-ADDITIONAL QUESTIONS (MULTIPLE CHOICE QUESTIONS)
  1. The unit vector in the direction of vecA=hati+hatj+hatk is

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  2. Which one of the following statement is true?

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  3. The angle between Ai +j and B = i-j is

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  4. The component of position vector vecr along x - axis will maximum valu...

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  5. Consider the quantities pressure, power, energy, impulse, change. Out ...

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  6. The length of a vector is

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  7. Distance is a scalar quantity and is a vector.

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  8. The horizontal range of a projectile fired at an angle of 15^(@) is 50...

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  9. Choose the motion in two dimension from the following.

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  10. Which one of the following physical quantities cannot be represented b...

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  11. An object is dropped is an unknown planet from height 50 m, it reaches...

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  12. The dimensions of physical quantity X in the equation Force =(X)/("Den...

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

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  14. The length of a vector is

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  15. The horizontal range of a projectile fired at an angle of 15^(@) is 50...

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  16. Kinematics is the branch of mechanics which delas with the motion of o...

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  17. A mass which has finite value with Zero dimension is called

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  18. is an example for motion in 3 dimension

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  19. Vectors which act along the same line whose angle between them can be ...

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  20. The unit vector in the direction of vecA=hati+hatj+hatk is

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