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Choose the correct alternatives...

Choose the correct alternatives

A

For a general rotational motio, angular momentum L and angular velocity `omega` must be parallel

B

For a rotational motion about a fixed axis, angular momentum L and angular velocity `omega` are always parallel.

C

For a general translational motion, momentum p and velocity v are always parallel.

D

For a general translational motion, acceleration a and velocity v are always parallel

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The correct Answer is:
C
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AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Exercise-I
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  2. The net external torque on a system of particles about an axis is zero...

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  3. Choose the correct alternatives

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  4. A child sits stationary at one end of a long trolley moving uniformly ...

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  5. (a) Algebaric sum of moments of masses about centre of mass is zero ...

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  6. A trolley filled with sand moves on a smooth horizontal surface with a...

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  7. In which of the following cases the centre of mass of a rod is certain...

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  8. Identify the correct statement. In the absence of external force, ...

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  9. P is the centre of mass of a system of four point masses A,B,C and D, ...

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  10. Mass of a ring is non-uniformly distributed around its geometric centr...

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  11. A disc of radius r is removed from the disc of radius R then (a) The...

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  12. In pure rolling motion of a ring (a) it rotates about instantaneous ...

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  13. A tank filled water is connected to another empty tank lying to the ri...

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  14. Statement A : When an iron sphere on the ground is heated its centre o...

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  15. Statement A : Whrn no external force acts on a body its centre of mass...

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  16. Statements : (a) In translatory motion each point of the body expe...

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  17. Statements : (a) Centre of mass is that fixed point of a system of p...

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  18. Statements : (a) Position of C.m depends on acceleration due to grav...

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  19. Statements : (a) Ration of the distance of the centre of mass of a...

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  20. The centre of mass of the system of particles depends on (a) masse...

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