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प्रश्न
How is work related to energy?
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उत्तर
RELATION BETWEEN WORK AND ENERGY: “Energy is the capacity of doing work” Every form of energy → is work.
i.e. work done on the body is stored in the form of energy. Energy is spent when a body does work. Thus to do more amount of work-more energy is needed.
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संबंधित प्रश्न
Write an expression for the work done when a force is acting on an object in the direction of its displacement.
State the S.I. unit of work and define it.
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. If the value of g be 10 m/s2, the work done by the girl against the gravitational force will be :
Calculate the amount of work done by a child carrying a bag of 20 kg when he moves a distance of 40 m in
(a) Vertical direction, and
(b) Horizontal direction
Can two agents, doing the same work, have different power?
Calculate the work done when:
A 5 kg weight is lifted 10 m vertically. (g = 9.8 m/s2)
