#### The potential energy equation is mathematically given as

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# The potential energy equation is mathematically given as.’, where k is the constant of proportionality, and x is the compression. In this case, elasticity is reversible. The forces that are linked to the elastic component are responsible for the transfer of energy in the material, when the energy is transferred to the environment, the object would recover the initial shape. Different materials however have a limitation in the extent to which the distortion can be endured without altering the internal structure permanently (Stocker and Benenson, 2002). This means that the traits of some solid materials are the specification in terms of the strain of the elastic limit. After the elastic limit is exceeded, the elastic material no longer stores all the energy from the performed mechanical energy in the electrical energy form. Rubber bands are good examples of elastic materials. In order to understand the application of elastic energy, this paper explores the design of a rubber band car.A stretched rubber band has a high amount of potential energy. When it is released, the stored energy is converted to motion or kinetic energy as the rubber band is snapped back to the initial shape. A rubber band car is one way of tapping the energy that is stored within the rubber bands. Potential energy involves the energy that is stored within an object. If a rubber band is stretched, it gives out some potential energy. The increasing stretch will increase the amount of potential energy produced. When a rubber band is released, the stored potential energy would be released thus changing into motion.The potential energy produced by elastic materials such as the stretched rubber band is referred to as elastic potential. This is the amount of energy that is stored within the elastic materials due to their ability to compress and stretch. This type of energy can be stored in bungee cords, rubber bands, springs, trampolines, and arrows that are drawn inside the bow. 