Yes, friction can be useful to gymnasts because it helps provide grip and traction on various apparatuses such as the balance beam and bars. This can help gymnasts maintain better control and stability while performing their routines.
Brakes are meant to have a lot of friction and it's useful.
No Friction Runes Computers
Ice on a flat surface - low friction but not useful for walking safely Greasy surfaces - low friction but not useful for handling objects securely Wet banana peel - low friction but not useful for maintaining balance
the friction from pushing the hull through the water is not useful as long as you're travelling.
It can be useful when a ball is catching
how does friction help car tyres?
Sandpaper is high in friction but is not considered useful in terms of being helpful in a general sense.
stopping cars Friction is useful to start a fire with sticks.
Friction is useful when you are trying to stop a car, but not useful in the pistons of a car's engine (It makes them less efficient).
It is useful
The brakes! And the tires (no friction = no traction).