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A mail bag is dropped into a post office...

A mail bag is dropped into a post office, from an areoplane flying horizontally with a velocity 72hm/hr at height of 490m from the ground. How far must the plane be from the post office so that it may directly fall into the post office ?

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BINA LIBRARY-KINEMATICS - 1-EXERCISE
  1. A mail bag is dropped into a post office, from an areoplane flying hor...

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  2. Distinguish between distance and displacement

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  3. Distinguish between speed and velocity.

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  4. What is meant by the statement 'motion and rest are relative' ?

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  5. Define the terms instantaneous velocity and instantaneous acceleration...

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  6. Define relative velocity. When is its value zero ?

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  7. Can the speed of a body negative ?

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  8. Can the velocity of a body negative or zero ?

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  9. What does the slope of velocity-time graph indicate ?

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  10. What does the area under velocity - time graph indicate?

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  11. Can a particle has zero velocity while its acceleration is uniform ?

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  12. What does the speedometer of a car indicate?

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  13. Distinguish between average velocity and instantaneous velocity.

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  14. What is the uniform motion ? How would you represent it graphically?

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  15. What does the slope of velocity-time graph indicate ?

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  16. Distinguish between average velocity and average speed. Is it possib...

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  17. A particle moves along a straight line according to x = Pt^2 + 2qt + ...

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  18. The displacement equation of a particle moving along a straight line w...

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  19. Derive - v = v0 + at

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  20. Derive - x = v0t + 1/2at^2

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  21. Derive - v^2 = v0^2 +2ax

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