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A 5 kg ball is trhown up with a speed of...

A 5 kg ball is trhown up with a speed of 10 m/s. What is the work done by the force of gravity (mg)?

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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
  1. A 5 kg ball is trhown up with a speed of 10 m/s. What is the work done...

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  2. Does work has direction associated with it?

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  3. For what value theta is work done maximum

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  4. For what value theta is work done zero?

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  5. When work is measured in J, force is measured in and displacement is ...

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  6. A person is walking on a horizontal road and carrying a briefcase. The...

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  7. Work done by centripetal force is zero . (T or F)

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  8. A coolie moves on a horizontal platform with luggage on his head. The ...

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  9. Define work. Write its formula. What is the SI unit of work? Is it a s...

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  10. Give three situations in which a force produces displacement but still...

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  11. A horizontal force acts on a body placed on a smooth horizontal table ...

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  12. A horizontal force of 20 N is required to keep a body moving in a hori...

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  13. Find the work done in lifting a 50 kg bucket a water through a vertic...

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  14. Does kinetic energy of a body depend on the direction of motion of the...

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  15. When you are climbing stairs, work done by the weight is positive. (T ...

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  16. The ratio S.I unit to C.G.S. unit of work is .

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  17. Can every force do work?

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  18. When work is done on a body then kinetic energy of the body. (increase...

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  19. A book falls freely from the table top. Is work done by some force dur...

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  20. A boy sitting in a moving car possesses kinetic energy.

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  21. If momentum of a body is doubled, the kinetic energy becomes times.

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