Cars don't get better gas or mileage.
its harmful to the engine, but without it your car could not move as the tires would just spin. can't have one without the other although things can be done to reduce it in the engine and increase it at the tires.
Friction tends to slow things down -- friction, particularly within the spokes of the wheels, is, after all, the reason why a car cannot run forever on one tank of gas. However, friction is also necessary for a car to move. When a car's wheel pushes against the ground, it is the force of friction that pushes back against it; according to Newton's Third Law of Motion, there is an equal and opposite reaction. When there is no friction to push against, there is no opposing force to push the wheel of the car along, which is why it is hard do drive along a slippery icy road.
Yes, because with out friction everything and/or every one would be slipping on the ground.
Friction slows things down thus the spin of one is slowed.
Friction Is Useful For Lots Of Things Like Walking Or Riding a Bike
it produces some gases which are harmful to the green house gases. one of these harmful gasses is carbon monoxide. if you breath in too much carbon monoxide then you will die. this chemical is orderless and colorless.
Cars don't get better gas or mileage.
When you drive a car and stop it is because of friction you stopped. If there was no friction your car won't stop and will slide. Friction also helps with waking, if there was no friction with every step you take you would slip. Friction lets your foot stay in one spot while you move the other foot. Ice has no friction so it is hard to walk on and hard to brake on (if driving a car.)
Is it harmful to a car to install racks on the hood. No it is not. They are useful, unless one is are not drilling the holes in the car then it surely will lower down resale price of the car.
An example using a car:Advantage: friction on car tires makes the car stop. Without friction, the car would continue without stopping (e.g. such as mass in space once given a push in one direction)Disadvantage: friction on car tires means more energy is required to propel the car forward = more gas is required for a trip.
Creates heat in the engine (friction of moving parts creates heat) Reduces efficiency (friction in the drivetrain, as well as air resistance, slows the car down) Causes the tires to wear out (friction between the road and the rubber causes the rubber to wear)
1. The soles of your socks wearing out 2. The gears in you care will wear down if not lubricated with oil 3. Holes in your jeans 4. Scraping your knee Harmful friction consists of two surfaces in motion, yet not in harmony with each other or one surface in motion against a fixed surface, which causes a wearing of one or both surfaces. Examples of harmful friction would be an abrasion to the skin from a person sliding on a rug or friction between a foot and a shoe creating heat and a blister in the skin of the foot. This is wrong. DONT USE THIS INFORMATION There are many examples of harmful friction. This can include the scrapes and cuts your encounter when falling down on the sidewalk. This can also be found in engines that are not properly lubricated causing them to heat up and malfunction.