Whats a common device for the energy transformation of kenetic to mechanical energy?
Kinetic energy is a form of mechanical energy. One of the simplest devices is a spring. An example is when a spring is sometimes placed at the bottom of an elevator shaft to help stop an elevator car in the event of a cable breaking. A good portion of the kinetic energy of the falling elevator car is converted by the spring into potential energy when the spring is compressed. Another common example is a turbine used in electrical power generating plants. In a hydroelectric power plant, the kinetic energy of flowing water is used to turn a turbine (mechanical energy) which in turn produces electricity.