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State work-energy theorem....

State work-energy theorem.

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Develop the notions of work and kinetic energy and show that it leads to work-energy theorem.

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SL ARORA-Work, Energy and power-EXERCISE
  1. Give two examples from daily life where according to physics, work don...

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  2. What is the source of KE of falling rain drops ?

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  3. State work-energy theorem.

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  4. What is spring constant ? What are its SI units?

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  5. Calculate the number of joules in 1 kWh?

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  6. Show that 1J = 10^7erg

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  7. How will the momentum of a body change if its kinetic energy is double...

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  8. Show graphically the variation of potential energy of an object thrown...

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  9. How does kinetic energy of a moving ball change if its speed is reduce...

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  10. What is the work done by centripetal force in moving a body through ha...

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  11. What is an elastic collision ?

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  12. Define the term work. Calculate the work done by a constant force. Is ...

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  13. Give the expression for work done if angle between force oversetrighta...

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  14. Define the term work and derive its SI unit. Write an expression for t...

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  15. How do we calculate work done by a force ? Write any two conditions un...

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  16. What is the amount of work done by a weight-lifter in holding a weight...

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  17. What is the amount of work done by a weight-lifter in holding a locomo...

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  18. Derive an expression for the potential energy of an elastic stretched ...

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  19. Define power. Prove that P=oversetrightarrowF.oversetrightarrowv wher...

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  20. By what factor the velocity of a body should be increased so that its ...

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