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The resultant of two vectors A and B is ...

The resultant of two vectors A and B is perpendicular to the vector A and its magnitude is equal to half the magnitude of vector B. The angle between A and B is -

A

`120^(@)`

B

`150^(@)`

C

`135^(@)`

D

None of these

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The correct Answer is:
B
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MOTION-VECTOR -Exercise - 1
  1. If the angle between the vectors vec(a) and vec(b) is an acute angle, ...

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  2. For the figure –

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  3. The resultant of two vectors A and B is perpendicular to the vector A ...

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  4. Which of the sets given below may represent the magnitudes of three ve...

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  5. The forces, each numerically equal to 5 N, are acting as shown in the ...

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  6. Rain is falling vertically down wards with a speed 5 m/s. If unit vect...

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  7. Two forces vecF(1) and vecF(2) are acting at right angles to each othe...

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  8. Two forces F(1) and F(2) are acting on a body. One force is double tha...

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  9. Two forces vec(F)(1)=500N due east and vec(F)(2)=250N due north have t...

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

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  11. The vector sum of two force P and Q is minimum when the angle theta be...

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  12. The vector sum of two vectors vecA and vecB is maximum , then the angl...

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  13. if vecP +vecQ = vecP -vecQ , then

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  14. The sum and difference of two perpendicular vectors of equal length ar...

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  15. A child pulls a box with a force of 200 N at an angle of 60^(@) above ...

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  16. In a two dimensional motion of a particle, the particle moves from poi...

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  17. Two vectors A and B lie in X-Y plane. The vector B is perpendicular to...

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  18. Two constant forces F(1)=2hati-3hatj+3hatk(N) and F(2)=hati+hatj-2hatk...

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  19. The two vectors A=2hati+hatj+3hatk and B=7hati-5hatj-3hatk are -

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  20. The angle made by the vector vecA=2hati+3hatj with Y-axis is

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