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The vector projection of a vector 3hat(i...

The vector projection of a vector `3hat(i)+4hat(k)` on y-axis is

A

5

B

4

C

3

D

Zero

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The correct Answer is:
D
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ERRORLESS -VECTORS-Exercise
  1. The vector projection of a vector 3hat(i)+4hat(k) on y-axis is

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  2. Position of a particle in a rectangular -co-ordinate (3,2,5). Then its...

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  3. If a particle moves from point P(2,3,5) to point Q(3,4,5). Its displac...

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  4. A force of 5 N acts on a particle along a direction making an angle of...

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  5. If vecA=3hati+4hatj and vecB=7hati+24hatj, find a vector having the sa...

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  6. Vector vec(A) makes equal angles with x-,y-,and z-axis. Find the value...

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  7. A vecA=2hati+4hatj-5hatk the direction of cosines of vector vecA are

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  8. The vector that must be added to the vector hati-3hatj+2hatk and 3hati...

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

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  10. A hall has the dimensions 10 m xx 12 m xx 14 m. A fly starting at one ...

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  11. 100 coplanar forces each equal to 10 N act on a body. Each force makes...

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  12. The magnitude of a given vector with end points(4, -4,0) and (-2, -2,0...

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  13. The expression (1/(sqrt(2))hat(i)+1/(sqrt(2))hat(j)) is a

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

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  15. The unit vector along hati+hatj is

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  16. A vector is represented by 3hati+2hatj+2hatk. Its length in XY plane i...

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  17. Five equal forces of 10 N each are applied at one point and all are ly...

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  18. Set the angles made by following vectors with x-axis in the increasing...

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  19. Any vector in an arbitrary direction can always be replaced by two (or...

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  20. Angular moment is

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