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The value of 'm', if hati+2hatJ-3hatk is...

The value of 'm', if `hati+2hatJ-3hatk` is parallel to `3hati+mhatj-9hatk` is

A

12

B

9

C

6

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
`(x_(1))/(x_(2))=(y_(1))/(y_(2))=(z_(1))/(z_(2))`
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NARAYNA-VECTORS-LEVEL-I (C.W)
  1. Two billiard balls are moving on a table and the component velocities ...

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  2. If vecA=2hati-3hatj+4hatk, its components in YZ-plane and ZX-plane are...

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  3. A car weighing 100kg is on a slope that makes and angle 30^(@) with th...

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  4. A room has dimensions 3mxx4mxx5m. A fly starting at one corner ends up...

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  5. If vecP=hati+2hatj+6hatk, its direction cosines are

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  6. The value of 'm', if hati+2hatJ-3hatk is parallel to 3hati+mhatj-9hatk...

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  7. A force 2hati+hatj-hatk newton acts on a body which is initially at re...

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  8. When a force vector vecF=(hati+2hatj+hatk)N acts on a body and produce...

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  9. The angle between the two vectors vecA=hati+2hatj-hatk and vecBi=-hati...

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  10. In a righht angled triangle the three vectors veca,vecb and vecc add t...

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  11. A vector parallel to the vector (hati+2hatj) and having magnitude 3sqr...

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  12. If vec2hati+3hatj and vecB=2hatj+3hatk the component of vecB along vec...

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  13. if the vectors P = alphahati+alphaj+3hatk and Q = alphahati - 2 hatj -...

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  14. A force of 2i+3j+2k N acts on a body for 4 and produces a displacement...

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  15. If theta is the angle between unit vectors vecA and vecB, then ((1-vec...

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  16. Find the torque of a force vecF=3hati+2hatj+hatk acting at the point v...

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  17. The area of the triangle whose adjacent sides are represented by the v...

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  18. The magnitude of scalar and vector products of two vectors are 48sqrt(...

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  19. The diagonals of a parallelogram are vecA=2hati-3hatj+hatk and vecB=-2...

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  20. Deduce the condition for the vectors 2hati + 3hatj - 4hatk and 3hati -...

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