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Is the work done by a frictional froce...

Is the work done by a frictional froce be positive or negative ?

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KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - A Questions - Answers (Try Yourself (VSQs))
  1. Define work

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  2. What is the work done by earth's gravitational force in keeping the m...

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  3. Is the work done by a frictional froce be positive or negative ?

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  4. How many erg equal to : Joule ?

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  5. How many Joule equal to 1 eV ?

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  6. How many Joule equal to 1 kWh ?

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  7. Define kinetic energy .Give its unit and dimensional formula and menti...

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  8. Define kinetic energy .Give its unit and dimensional formula and menti...

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  9. Is kinetic energy a scalar quantity or vector quantity ?

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  10. If the displacement is done by the force then when does the force is...

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  11. What is variable force ?

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  12. Obtain the equation of work by variable force in one dimension .

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  13. What will be the area under the graph of variable force versus positio...

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  14. Define kinetic energy

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  15. Define kinetic energy .Give its unit and dimensional formula and menti...

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  16. Is kinetic energy a scalar quantity or vector quantity ?

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  17. Show that the rate of change of kinetic energy is a power .

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  18. Whether the work energy theorem is a scalar or a vector ?

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  19. If the kinetic energy of body increases them ?

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  20. What are conservative force , non - conservative force , conservative ...

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