4. How work done is related to gravitational potential and kinetic energies? Also discuss the total energy of a system when forces other than gravitational force do work.
4. How work done is related to gravitational potential and kinetic energies? Also discuss the total energy of a system when forces other than gravitational force do work.
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4. How work done is related to gravitational potential and kinetic energies? Also discuss the total energy of a system when forces other than gravitational force do work.
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4.
How work done is related to gravitational potential and kinetic energies?
Let us consider we are lifting one object of mass "m" with a constant velocity "v". At height "h" we have the gravitational potential energy of the particle is,
Where g is the gravitational acceleration at that place.
We have the kinetic energy of the object is
Hence the amount of work done to move the object to a height h is
Hence,
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