When you fall and friction causes you to scrape or tear yourself. At least it stops you, painfully.
It depends what you want to do with it. Friction generates heat, which can be good (if you are cold), or bad (if you are not). Friction slows down movement, which can be good (if you are about to crash into a tree with your car), or bad (if you need high performance in an engine for instance).
Answerit keeps you from slipping and falling on your butt.AnswerHave you ever tried to walk on ice? Having no friction would be like that but worse, much worse.
Friction is good in situations like walking or driving a car, where it provides traction to prevent slips and skids. Friction is bad in situations like mechanical parts rubbing together, where it can cause wear and heat generation, leading to inefficiency and potential damage.
Good friction refers to the beneficial force that opposes the relative motion between two surfaces in contact, providing stability and control. It helps to prevent slipping and sliding, enabling objects to grip, hold, or move efficiently. In everyday situations, good friction is essential for activities like walking, driving, and playing sports.
A good friction for your car would typically fall within the manufacturer's recommended range, which can vary depending on the specific tire type and driving conditions. It's important to consult your car's manual or a professional to determine the optimal friction for your vehicle.
bad friction is when 2 things rub together .
Friction is good because it provides traction. Friction is necessary for people to stand, or for vehicles to accelerate or break. Friction can also be used to convert kinetic energy to heat or electrical energy. Friction can be bad because kinetic energy is can be lost to friction.
its good
It stops you slipping.
it depends on the curcumstances but if there was no friction you wouldn't be able to grip anything.
'Gravictism'? (Formed from Gravity, Friction and Magnetism)
It is because of friction.
Friction can be either good or bad depending on where it is. Friction between parts that are meant to stay put is a good thing, friction between parts that are supposed to move is a bad thing. Tires for instance are meant to roll along the road, not slide. Here, friction is good. But then you cone to the hubs. In here, the wheel has to move around the axle. Here, friction is bad. Here, friction will turn effort that would otherwise have gone into moving the bike forward into heat, which is no use to the rider at all.
in clutch discs
The brakes on your car are a good example.
In situations where you want to create heat or dissipate kinetic energy, friction is usually a good thing. Friction when rubbing your hands together creates heat, which you appreciate, and friction between your brake pad and brake disc slows down your car, which is also a good thing. In situations where you want to maintain kinetic energy or minimize heat, friction is usually bad. Air friction slows down a glider, limiting its range, and mechanical friction in a car rolling on a flat surface causes it to stop without the brakes being applied.
there is friction in your cars brake system and without that frictiuon there your car would roll away whenever it was on a hill so this is a good example of when friction is useful.