Work, Energy and Power
Pushing a box, stretching a bow and switching on a motor all involve the same currency. Chapter 5, Work, Energy and Power, of the NCERT Physics textbook for Class 11 names it energy. You will calculate work by constant and variable forces, state the work energy theorem, and track kinetic and potential energy with conservation in gravitational and spring systems. Elastic and inelastic collisions are analysed, and power with its units ties the stored account to the rate of spending.
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