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If the magnitude of velocity in the prev...

If the magnitude of velocity in the previous question is decreasing with time, what is the direction of f angular acceleration `(oversetrightarrow(alpha))? `

A

east

B

west

C

north

D

south

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The correct Answer is:
C
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ALLEN-CIRCULAR MOTION-EXERCISE(O-1)
  1. The value of n so that vectors 2hati+3hatj-2hatk, 5hati+nhatj+hatk and...

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  2. If a and b are two vectors.then the value of (a+b)xx(a-b) is

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  3. "|"oversetrightarrow(a).oversetrightarrow(b)"|"=sqrt3"|"oversetrightar...

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  4. A body is executing circular motion in the vertical plane containing d...

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  5. If the magnitude of velocity in the previous question is decreasing wi...

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  6. The direction of angular acceleration of a body moving in a circle in ...

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  7. The second's hand of a watch has length 6 cm. Speed of end point and m...

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  8. A point P moves in counter clockwise direction on a circular path as s...

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  9. A spot light S rotates in a horizontal plane with a constant angular v...

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  10. Which of the following statements is FALSE for a paricle moving in a...

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  11. A particle is moving in a circle:

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  12. A particle of mass m is tied to light string and rotated with a speed ...

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  13. Which vector in the figures best represents the acceleration of a pend...

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  14. A conical pendulum is moving in a circle with angular velocity omega a...

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  15. A point mass m is suspended from a light thread of length l, fixed at ...

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  16. A long horizontal rod has a bead which can slide along its length and ...

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  17. An insect crawls up a hemispherical surface very slowly (see the figur...

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  18. The maximum velocity (in ms^(-1)) with which a car driver must travers...

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  19. A particle is acted upon by a force of constant magnitude which is alw...

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  20. A car runs around a curve of radius 10m at a constant speed of 10ms^(-...

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