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The earth, moving around the sun in a ci...

The earth, moving around the sun in a circular orbit, is acted upon by a force and hence work must be done on earth by this force.

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SL ARORA-Work, Energy and power-EXERCISE
  1. Gravitation force is a ----------- force while force of friction is a...

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  2. A conservative force is equal to the negative gradient of ------------...

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  3. The earth, moving around the sun in a circular orbit, is acted upon by...

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  4. True / False type questions : A body is moving along a circular path. ...

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  5. True / False type questions : It is necessary that the work done in th...

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  6. True / False type questions : Chemical, gravitational and nuclear ener...

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  7. True / False type questions : Work done by a body against friction res...

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  8. True / False type questions : In an elastic collision of two bodies, t...

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  9. True / False type questions : Total energy of a system is always conse...

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  10. True / False type questions : In an inelastic collision, the final kin...

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  11. In an elastic collision of two billiard balls, is the total kinetic en...

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  12. Assertion: The relative velocity of the two particles in head-on elast...

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  18. What do you mean by work done by a force ?

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  19. State the factors ono which work done by a force depends.

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  20. What should be the angel between the direction of force and displaceme...

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