Non-conservative forces
Definition
Non-conservative forces are external forces that do work on an object, causing a change in its mechanical energy. These forces depend on the path taken by the object and not just its initial and final positions.
Analogy
Imagine you're driving a car and you have two routes to reach your destination. One route has smooth roads with no traffic lights, while the other route has bumpy roads with many traffic lights. The non-conservative force is like taking the second route because it depends on the path you choose, affecting your overall travel experience.
Related terms
Conservative forces: Forces that do not depend on the path taken by an object but only on its initial and final positions.
Work-energy theorem: A principle stating that the work done on an object is equal to its change in kinetic energy.
Frictional force: A non-conservative force that opposes motion between two surfaces in contact.
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