This discussion clarifies the distinction between static and kinetic friction in the context of energy conservation. Static friction is utilized for rolling objects because the point of contact does not slide against the surface, thus preventing energy loss through heat. In contrast, kinetic friction converts kinetic energy into heat energy, which is why its effects are often overlooked in energy conservation equations. The key takeaway is that static friction maintains energy efficiency in rolling motion, while kinetic friction dissipates energy as heat.
PREREQUISITESPhysics students, mechanical engineers, and anyone interested in the principles of motion and energy conservation will benefit from this discussion.
nivek114 said:1. Why do we use static friction instead of kinetic friction for a rolling object?
nivek114 said:2. Why do we ignore the effects of friction in the conservation of energy?