Because of this, clonidine is often used to treat the symptoms of drug, alcohol, and nicotine withdrawal. Clonidine is beneficial in opiate withdrawal because it treats symptoms that are commonly associated with that condition (watery eyes and nose, diarrhea, irritability).
However, Friction can also be harmful, for example, Rubbing two objects together causing friction causes heat, under the right circumstances it could even cause a fire, so in that case it could be good or bad, when you rub two sticks together to make fire, its good, but lets say your engine in your car is low on oil, the friction in the cylinders will eventually cause the motor to over heat and seize up and then you have engine failure and a large mechanic bill, thats bad,
Best Answer: There's a lot of factors. Friction force is equal to mu*N, where mu is the coefficient of friction between the two objects, and N is the normal force, or how hard the objects are pressed together. Three of the biggest factors affecting friction are: 1) The stickiness of the surfaces to one another. This affects the coefficient of friction. 2) The force between the objects; this is the normal force. 3) Whether the objects are already sliding past one another. This also affect the coefficient of friction (static friction vs kinetic friction).