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A boy of mass 40 kg climbs vertically up...

A boy of mass 40 kg climbs vertically upwards on a coconut tree to a height of 10m. Calculate the work done by the boy.

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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
  1. The body of mass 6 kg is taken from a height of 5 m to a height of 10 ...

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  2. An object of mass 12 kg is at a certain height above the ground. If th...

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  3. A boy of mass 40 kg climbs vertically upwards on a coconut tree to a h...

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  4. A boy of mass 40 kg climbs vertically upwards on a coconut tree to a h...

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  5. In a solar cell panel, energy is converted into energy.

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  6. In a micorphone, energy is converted into energy.

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  7. The point of minimum kinetic energy in case of oscillating pendulum is...

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  8. Graphically show the variation of potential energy of a freely falling...

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  9. During a free fall K.E1 + P.Ei + = K.Ef+. Here I = initial and f = fin...

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  10. A body is thrown vertically upwards. During it srise the potential ene...

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  11. Name five devices and the energy conversion that takes place in the de...

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  12. A 2 kg ball is dropped from a height of 1. Find its kinetic energy jus...

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  13. A body is thrown up with a kinetic energy 100 J. Find the potential en...

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  14. Find the height attained by the body when a bodyis thrown up with a ki...

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  15. What is the difference between kW and kWh?

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  16. Work can the converted into energy (T or F)

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  17. 1 kWh = J

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  18. The commercial unit of electricity in kWh , what is the value of 1kWh ...

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  19. Power is of doing work with respect to time.

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  20. 1 W.s = J.

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