A bowling ball that originally is not spinning is thrown down a bowling lane; by the time the ball strikes the pins, it is rolling without slipping. Is the total mechanical energy conserved?
Conservation of Energy:
Energy is defined as the ability of an object to do work. It comes in different form. One of which is the kinetic energy. Kinetic energy is the energy that is dependent on the motion of the particle. Energy is always conserved, meaning that it cannot be created nor destroyed. It can only be converted. This is described by the law of conservation of energy.
Answer and Explanation:
Initially, the bowling ball will roll and slip when it is still in contact with the surface with less friction. Since it is slipping, the frictional force acts as an external force towards the bowling ball. A closed system with no external force acting on it can have its total mechanical energy conserved. Since, in this case, there is an external force, the total mechanical energy is not conserved.
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Learn more about this topic:
from Geography 101: Human & Cultural GeographyChapter 13 / Lesson 9