Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
Friction is a force opposite the direction of movement due to the rubbing of surfaces in contact. This rubbing causes heat energy which is usually dissipated into the surroundings and is therefore unavailable to do further work. Heat energy is an increase in the kinetic energy of the molecules BUT again, friction is a force NOT energy.
