Energy Assignment Help | Energy Homework Help


Energy is defined as the capacity of doing work. Its units are same as those of work, mentioned in Art 2.7.
If body having mass m, in kg, is moving with velocity v, in metres/second,
 Kinetic energy = 1  mv2 joules.
If a body having mass m, in kg, is lifted vertically through height h, in metres, and if g is the gravitational acceleration, in metres/second2 in that region, potential energy acquired by the body.

= Work done in lifting the body = mgh joules = 9.81 mh joules.

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