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Is potential energy a vector or scalar q...

Is potential energy a vector or scalar quantity ?

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LAKHMIR SINGH & MANJIT KAUR-WORK AND ENERGY-Exercise
  1. two bodies A and B of equal masses are kept at heights of h and 2h res...

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  2. What is the kinetic energy of a body of mass 1 kg moving with a speed ...

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  3. Is potential energy a vector or scalar quantity ?

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  4. A load of 100 kg is pulled up by 5 m. Calculate the work done. (g = 9....

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  5. State whether the following statement is true or false : The potenti...

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  6. What happens to the potential energy of a body when its height is dou...

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  7. What kind of energy is possessed by the following ? (a) A stone kept...

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  8. Fill in the following blank with suitable words: (a) Work is measure...

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  9. What are the quantities on which the amount of work done depends ? How...

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  10. Is it possible that a force is acting on a body but still the work don...

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  11. A boy throws a rubber ball vertically upwards. What type of work, posi...

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  12. Write the formula for work done on a body when the body moves at an an...

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  13. How does the kinetic energy of a moving body depend on its (i) speed, ...

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  14. What is meant by positive work, negative work and zero work ? Illustra...

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  15. A ball of mass 200 g falls from a height 5 metres. What is its kinetic...

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  16. Find the momentum of a body of mass 100 g having a kinetic energy of 2...

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  17. Two objects having equal masses are moving with uniform velocities of ...

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  18. A body of 2 kg falls from rest. What will be its kinetic energy during...

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  19. On a level road, a scooterist applies brakes to slow down from a speed...

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  20. A man drops a 10 kg rock from the top of a 5 m ladder. What is its spe...

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