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The radius vector vecr =2i+5k and the an...

The radius vector `vecr =2i+5k` and the angular velocity of a particle is w = 3i - 4k. Then the linear velocity of the particle is

A

`15hati-8hatj+6hatk`

B

`2hati+3hatj+hatk`

C

`15hati+8hatj-6hatk`

D

`-23hatj`

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The correct Answer is:
D
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AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-PRACTICE EXERCISE
  1. The centre of mass coordinates of a block of shape shown in fig. is

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  2. (i+i)×(i-j)=

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  3. The radius vector vecr =2i+5k and the angular velocity of a particle i...

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  4. If the dot product of two vectors is equal to the magnitude of the cro...

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  5. If F = 2i+ 3j - k and r = i- j + 6k find rx F

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  6. Area of a parallelogram formed by vectors (3hati-2hatj+hatk)m and (hat...

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  7. Find the values of x and y for which vectors vecA=6hati+xhatj-2hatk an...

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  8. If a,b are the magnitudes of vectors veca & vecb and veca.vecb=0 the v...

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  9. |AxxB|^(2)+(A.B)^(2) is equal to

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  10. If vecP=i+j+2k and vecQ=3i-2j+k, the unit vector perpendicular to both...

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  11. Two sides of a triangle are given by hati+hatj+hatk and -hati+2hatj+3h...

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  12. Two small spheres of mass 5kg and 15kg are joined by a rod of length ...

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  13. Moment of inertia of a hoop suspended from a peg about the peg is

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  14. Three point masses 3kg, 2kg and 1kg are placed at A,B,C of a triangle....

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  15. The M.I of a uniform thin circular ring about an axis through its cent...

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  16. Ratio of densities of materials of two circular discs of same mass and...

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  17. Moment of inertial of a uniform horizontal solid cylinder of mass M ab...

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  18. M.I of a solid sphere about its diameter is 64kgm^(2). If that sphere ...

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  19. Two thin uniform circular rings each of radius 10m and mass 0.1kg are ...

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  20. The radius of gyration of a hollow sphere about a tangent is

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