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Fill in the blanks : (i) overset rarr(...

Fill in the blanks :
(i) `overset rarr(tau) = overset rarr(r ) xx …` (ii) `overset rarr(L) = overset rarr(r ) xx …`

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(i) `overset rarr(tau) = overset rarr(r ) xx overset rarr(F)` (ii) `overset rarr(L) = overset rarr(r ) xx overset rarr(p)`
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Show that the area of the triangle contained between the vector overset rarr(r ) and overset rarr(b) is one half of the magnitude of overset rarr(a) xx overset rarr(b)

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The angle between vector (overset(rarr)Axxoverset(rarr)B) and (overset(rarr)B xx overset(rarr)A) is :

Let overset(rarr)C = overset(rarr)A+overset(rarr)B then :

Statement-1 : Torque is a vector whose direction is along the applied froce. Statement-2 : overset rarr(tau) = overset rarr(r ) xx overset rarr(F)

Are the magnitude and direction of overset(rarr) A- overset(rarr)B same as that overset(rarr)B-overset(rarr)A ?

Projection of overset(rarr)P on overset(rarr)Q is :

PRADEEP-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-VERY SHORT ANSWER QUESTIONS
  1. What are the factors on which moment of inertia of a body depend ?

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  2. Is radius of gyration of a body constant quantity ?

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  3. There are two spheres of same mass and same radius, one is solid and o...

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  4. Two solid spheres of the same are made of metals of different densitie...

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  5. Name the rotational analogue of force. What are its units ?

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  6. A cannot ball and a marble ball roll from rest down an incline. Which ...

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  7. Can a body in translatory motion have angular momentum ? Explain.

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  8. Why spin angular velocity of a star is greatly enhanced when it collap...

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  9. Fill in the blanks : (i) overset rarr(tau) = overset rarr(r ) xx … (...

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  10. How are torque and angular momentum related ?

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  11. Complete the statement : Angular momentum of a particle is equal to tw...

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  12. Rolling motion can be treated as a combination of ………. . Fill in the b...

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  13. Write an expression for kinetic energy of rolling body.

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  14. A solid cylinder is rolling down on an inclined plane of angle theta. ...

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  15. Angle traced by a rotating body in nth seconds is theta(nth)=…………where...

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  16. the centre of gravity of a body on the earth coincides with its...

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  17. Why does a solid sphere have smaller moment of inertia than a hollow c...

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  18. The variation of angular position theta, of a point on a rotating rigi...

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  19. A unifrom cube of mass m and side a is placed on a frictionless horizo...

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  20. A uniform sphere of mass m and radius R is placed on a rough horizonta...

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