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State and explain work-energy theorem. -Physics CBSE class 11 2016
State and explain work-energy theorem.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).
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