Describe kinetic Energy? Kinetic energy - 1. The energy possessed by a body virtue of its motion is called kinetic energy. 2. Some examples of kinetic energy from our day to day life are : a) K.E of running water is used to run the water mills. b) The kinetic energy of the hummer is used to drive a nail in wood. c) A bullet fired from a rifle can penetrate into a target because of its kinetic energy . Kinetic energy 3. Calculation of kinetic energy : The kinetic energy of a body of mass m moving with velocity v can be calculated by any of the following two ways: a) Either by calculating the amount of done by the moving body against the external force , before it comes to rest. b) Or by calculating the amount of work required to set the body into motion with the velocity v from its state of rest. We shall calculate here kinetic energy of a body by the second method. Suppose a const...
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