According to the law of conservation of energy we cannot be created or destroyed energy but energy may be changed from one form to another.
We know, we cannot create or destroy the energy. It just converted into one form to another. But the total energy remains same. In general kinetic energy is ...
The kinetic energy possessed by a moving body is equal to the amount of work which the moving body performs before coming to rest.
The energy possessed by a body by virtue of its specific position (or changed configuration) is called the potential energy.
A body capable to doing work is said to possess energy. The energy possessed by a body is measured by the amount of work that the body can perform.
The rate of work by a force is known as power. The measurement of power is the work done in 1 second by a force. The total work done in 1 second is w/t.
When a force is applied vertically in the direction of displacement of the body. Then that force does not perform any work. That is known as work-less force.
If we apply a force on a body and applied point of the force displaced then only work done. we are get a book from a sofa and put it on the table.