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Under what condition, the three vectors ...

Under what condition, the three vectors (i) cannot giv zero resultant (ii) can give zero resultant ?

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When the vetors are not lying in the same plane .
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MODERN PUBLICATION-MOTION IN A PLANE -Revision Exercises (very Short Answer Questions)
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  4. What is a projectile ? Give its examples. Show that the path of projec...

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  5. TRAJECTORY OF HORIZONTAL PROJECTILE

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  6. Define time of flight for a projectile .

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  7. The horizontal range for projectile is given by

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  8. What do you mean by maximum height attained by a projectile ?

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  9. What do you mean by angular displacement ? Is it a scalar or vector ?

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  10. What is angular velocity ? What is its unit?

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  11. What is centriprtal acceleration ? In which direction it acts ?

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  12. Can there be a motion in two dimensions with an acceleration only in o...

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  13. A ball is thrown straight up. What is its velocity and acceleration at...

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  14. CENTRIFUGAL FORCE

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  15. At which angle the maximum height attained by aprojectile is maximum ?

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  16. What will be the ratio of time of flights of two projectiles fired at...

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  17. Two bodies of masses 4 kg and 6 kg are thrown with the same velocity i...

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  18. What is the angle between velocity vector and acceleration vector in u...

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  19. A projectile is fired from horizontal at an angle theta . What are the...

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  20. A body is projected at angle of 45^(@) to the horizontal . What is its...

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