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Physics-cbse-class-11-->View question


Asked On2017-07-14 13:43:08 by:milan-ransingh

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The Work-Energy Theorem. The principle of work and kinetic energy (also known as the work-energy theorem) states that the work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle.

The work W done by the net force on a particle equals the change in the particle's kinetic energy KE.
The work-energy theorem can be derived from Newton's second law.

Work transfers energy from one place to another or one form to another. In more general systems than the particle system mentioned here, work can change the potential energy of a mechanical device, the heat energy in a thermal system, or the electrical energy in an electrical device.

Torque:

A rotational or twisting effect of a force; (SI unit newton-meter or Nm; imperial unit foot-pound or ft-lb).


Answerd on:2017-07-18 Answerd By:13priya

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