If you are driving and the road is icy and a car is coming at you and you push your brakes you will slid and the two cars will crash.
Hopefully that answered your Question
Thank You for going on Answers.
Sandpaper is high in friction but is not considered useful in terms of being helpful in a general sense.
Friction is helpful for these sports:FootballJavelinWeight liftingFriction is not helpful for these sports:SkiingDiving
Friction can be helpful and not helpful it is not helpful when you are running because it slows you down hope that'll help!!!! ;)
Friction is helpful between car tyres and roads for grip. It is also sometimes used for heating as friction generates heat.
friction
By using kinetic friction
Helpful Friction.
Friction is necessary for wheels to rotate and nails to keep in walls.
Without friction, we couldn't walk or grip onto anything.
Decreased friction is very helpful in working machinery, because friction causes wear and tear.Mainly its very helpful in moving parts. Decreased friction is also helpful in electric cables and wires, as reduced friction reduces energy loss via heat.
Friction is helpful when you need to slow down or stop by applying the brakes. It allows the brake pads to grip the wheel rims and create the necessary force to halt the bike. Friction is not helpful when you want to maintain a constant speed, as it creates resistance that can make cycling more challenging.
Examples of SLIDING FRICTION is pushing a heavy rock in your path, or moving a box on the floor.