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A body of mass 2 kg initially at rest mo...

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7N on a table with coefficient of kinetic friction `= 0.1`. Compute the
Change in kinetic energy of the body in 10s.

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`635 J` Work done by the net force on a body equals change in its kinetic energy.
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A body of mass 2 kg initially kg intially at rest moves under the action of an applied horizontal force of 7 N on a table with coefficient of kinetic friction = 0.1 Compute the (a) work done by the applied force in 10 s. (b) work done by friction in 10 s . work done by the net force on the body in 10 s. (d) Change in kinetic energy of the body in 10 s and interpret your details .

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NCERT GUJARATI-WORK, ENERGY AND POWER-EXERCISES
  1. A body of mass 2 kg initially kg intially at rest moves under the acti...

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  2. A body of mass 2 kg initially kg intially at rest moves under the acti...

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

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  4. Given in Fig. 6.11 are examples of some potential energy functions in ...

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  5. Answer the following : The casing of a rocket in flight burns up due...

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  6. Comets move around the sun in highly elliptical orbits . The gravita...

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  7. An artificial satellite orbiting the earth in very thin atmosphere lo...

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

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  9. When a conservative force does positive work on a body , the potential...

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  10. Work done by a body against friction always results in a loss of its k...

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  11. The rate of change of total momentum of a many -particle system is pro...

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  12. In an inelastic collision of two bodies, the quantities which do not c...

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

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

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

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

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

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  18. Answer carefully, with reasons : Is the total linear momentum conser...

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  19. Answer carefully, with reasons : What are the answers to (a) and (b)...

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  20. Answer carefully, with reasons : If the potential energy of two bill...

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