In this case, the block oscillates in one dimension with the force of the spring acting parallel to the motion: This potential energy is the energy stored in the spring when the spring is extended or compressed. The force of the spring is a conservative force (which you studied in the chapter on potential energy and conservation of energy), and we can define a potential energy for it. If the only result is deformation, and no work goes into thermal, sound, or kinetic energy, then all the work is initially stored in the deformed object as some form of potential energy.Ĭonsider the example of a block attached to a spring on a frictionless table, oscillating in SHM. That is, whether you pluck a guitar string or compress a car’s shock absorber, a force must be exerted through a distance. To produce a deformation in an object, we must do work. Explain the concepts of stable and unstable equilibrium points.Describe the energy conservation of the system of a mass and a spring.By the end of this section, you will be able to:
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