If you were roller-skating you don't need friction because it slows you down.
Well you want friction between the wheels and the floor (so you do not slip sideways) but not between the wheel and the axel (thats why you have ball bearings there to reduce rolling friction).
If you are ice skating you do not want friction between the blade of your skates and the ice.
No, you do not need friction to shine a flashlight. A flashlight works by converting electrical energy into light through the use of a bulb or LED and battery. The light produced does not rely on friction to be emitted.
Low friction would be desired on surfaces where objects need to slide easily, such as drawer tracks, door hinges, and rollerblade wheels. These areas would benefit from reduced resistance to movement, making it easier to navigate and operate smoothly.
F1 cars need friction to maintain grip on the track and maximize traction, allowing for better acceleration, cornering, and braking performance. Friction is essential for the tires to generate the necessary grip to navigate the high-speed corners and stop effectively during racing conditions.
Yes, pencils need friction in order to write. The friction between the pencil lead and the surface of the paper allows the lead to leave a mark as it rubs off onto the paper. Without friction, the pencil lead would not be able to transfer onto the paper.
Friction is needed to create traction, which allows us to walk, grip objects, and drive vehicles. It also helps to stop moving objects and convert kinetic energy into thermal energy. Without friction, objects would slide uncontrollably, making movement and handling difficult.
Between the runners and the snow.
You'd need it pretty much everywhere apart from the bearings. The grips need friction so that your hands don't slip. The pedals need friction so that your feet don't slip. The seat need a bit of friction too. The rims need a bit of friction to prevent the tires from slipping. The tires needs lots of friction not to slip against the ground. the brakes need plenty of friction to be able to slow you down.
rough places
yes! you need friction for lacrosse so you don't fall
On her feet and hands. That is why they build climbing shoes from sticky rubber. Her belay partner will need friction in their belay device (ATC OR GRI GRI, etc)
than what?
In some places it is essential. Others it is detrimental.
We would need to know what the friction is to affect to respond to this question.
low friction
Because without friction, it would not be successful when typing!
need more information, please
friction