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When is mechanical work done?...

When is mechanical work done?

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JBD PUBLICATION-WORK,ENERGY AND POWER-EXAMPLE
  1. A ball of mass M1 collides elastically and head on with another ball o...

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  2. A moving ball of mass m undergoes a head - on elastic collision with ...

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  3. When is mechanical work done?

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  4. What is a joule?

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  5. In a tug of war ,what is work done?

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  6. Explain with an example that a body may possess energy even when it is...

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  7. Is there any work done by a man wh climbbs up the stairs of his house?...

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  8. What is conservative force?

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  9. What is non-conservative force?

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  10. Moment of a force and work done by a force have same units.then what i...

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  11. A bus and car have the same momentum .Which of them has greater kineti...

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  12. What is the significance of work-energy theorem?

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  13. What is power ? Write its SI unit also.

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  14. A person walking on a horizontal road with a load on his head does no ...

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  15. A meteorite burns in the atmosphere before it reaches the earth's surf...

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  16. A body is initially at rest .It undergoes one-dimensional motion with ...

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  17. A body is initially at rest .It undergoes one-dimensional motion with ...

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  18. A body is initially at rest .It undergoes one-dimensional motion with ...

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  19. A body is initially at rest .It undergoes one-dimensional motion with ...

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  20. A rough incline plane is placed on a cart moving with a constnat veloc...

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