1.3 Energy
Energy of a body is its capacity to work. The capacity of a body for doing work by virtue of its motion is called its kinetic energy. The capacity of a body for doing work by virtue of its position or change in configuration is called its potential energy.
1.3.1 Kinetic Energy
The kinetic energy of a body moving with velocity v is measured by the amount of work done by a force in generating the velocity v in the body at rest or by the amount of work required against a force to bring the body moving with velocity to rest. Thus, kinetic energy is
where F is the applied force.
If m be the mass of the body and f the acceleration generated, ...
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