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The sign of work done by a force on a bo...

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative :
Work done by the resistive force of air on a vibrating pendulum in bringing it to rest.

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Negative
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NCERT BANGLISH-WORK, ENERGY AND POWER-EXERCISES
  1. The sign of work done by a force on a body is important to understand....

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  2. The sign of work done by a force on a body is important to understand....

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  3. The sign of work done by a force on a body is important to understand....

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  4. A body of mass 2 kg initially at rest moves under the action of an app...

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  5. A body of mass 2 kg initially at rest moves under the action of an app...

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  6. A body of mass 2 kg initially at rest moves under the action of an app...

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  7. A body of mass 2 kg initially at rest moves under the action of an app...

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  8. Given in Fig. are examples of some potential energy functions in one ...

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  9. The potential energy function for a particle executing linear simple h...

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  10. Answer the following : Comets move around the sun in highly elliptic...

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  11. Answer the following : An artificial satellite orbitting the earth i...

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  12. Answer the following : In Fig.6.13. (i) the man walks 2m carrying a ...

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  13. Underline the correct alternative : When a conservative force does p...

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  14. Underline the correct alternative : Work done by a body against fric...

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  15. Underline the correct alternative : The rate of change of total mome...

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  16. Underline the correct alternative : In an inelastic collision of two...

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  17. State if each of the following statements is true or false. Give reaso...

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  18. State if each of the following statements is true or false. Give reaso...

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  19. State if each of the following statements is true or false. Give reaso...

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  20. Answer carefully, with reasons : In an elastic collision of two bill...

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