A cork gun contains a spring whose spring constant is 17 N/m. The spring is compressed by a distance ΔX = 4.8 cm and used to propel from the gun a cork of mass 1.86 g. Assuming the cork is released when the spring passes through its equilibrium position Xeq, what is the speed of the cork as it is released from the spring? I have calculated this answer to correctly be 4.588 m/s. The question I am having trouble with is: Suppose now that the cork temporarily sticks to the spring, causing the spring to extend 2 cm beyond its equilibrium position before separation occurs. What is the speed of the cork as it is released from the spring in this case?

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Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.