because it kills dinasaurs everywhere
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.
By using kinetic friction
Helpful Friction.
when you use matches
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 essential for Walking and other movement. So obviously it is of paramount importance in football. Without friction, A player can't grip the ball, the ground pr other players. Running, which is the base of football, doesnt exist without friction. Hence, no friction = no football.
sure is that is what keeps it on the road
On a car, friction is useful on the tyres and brakes. It is not required for the parts that rotate.
first you ejaculate onto the football, rub it around in your hands a bit and slide it across a smooth floor and WA LA you have sliding friction on a football XD