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When is work done by a force postivie ?...

When is work done by a force postivie ?

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If the displacement of a particle is in the same direction of force acting on the particle then the work done by the force is said to be positive .
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When is work done by the force positive ?

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When is work said to be done?

SUBHASH PUBLICATION-ANNUAL EXAMINATION QUESTION PAPER NORTH- 2018-PART - D
  1. When is work done by a force postivie ?

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  2. What is v-t graph? Derive the expression x = V0 t + 1//2 at^2 using v...

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  3. State and prove conservation of linear momentum in case of collision o...

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  4. Define torque and angular momentum .

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  5. Derive the relation between torque and angular momentum .

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  6. Explain different stages of Carnot's cycle with P-V diagram .

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  7. Derive an expression for time period of oscillating bob of simple pend...

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  8. Mention the differences between progressive and stationary waves .

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  9. An aircraft executes a horizontal loop of radius 1 km with a steady sp...

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  10. A man weighing 49 kg carries a bag of 2 kg . He climbs to the top of a...

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  11. Calculate g at the bottom of a mine 8 km deep and at an altitude 32 km...

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  12. A cubical ice box of thermocol has each side 30 cm and thickness 5 cm ...

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  13. The apparent frequency of a note when an observer moves towards a stat...

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  14. Show that x=v(0)t+1//2at^(2) by graphical method.

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  15. State and prove conservation of linear momentum in case of collision o...

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  16. Define torque and angular momentum .

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  17. Derive the relation between torque and angular momentum .

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  18. Explain different stages of Carnot's cycle with P-V diagram .

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    |

  19. Derive an expression for time period of oscillating bob of simple pend...

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    |

  20. Mention the differences between progressive and stationary waves .

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    |

  21. An aircraft executes a horizontal loop of radius 1 km with a steady sp...

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    |