A substance which has hard surface will have more frictional properties
Friction isn't a size. You can increase friction by increasing the pressure on two objects as they pass, or reduce lubrication between them.
We can increase friction by making the surfaces of the object rough. We can also increase friction by pressing the two objects more strongly.
Friction between two objects produces heat.
When friction is createed between two objects, the objects create static electricity! :D
Air friction.
Friction isn't a size. You can increase friction by increasing the pressure on two objects as they pass, or reduce lubrication between them.
We can increase friction by making the surfaces of the object rough. We can also increase friction by pressing the two objects more strongly.
Friction between two objects produces heat.
No. Objects have to be in contact for there to be friction between them.
Friction between two objects produces heat.
When friction is createed between two objects, the objects create static electricity! :D
Air friction.
1. Increase the normal reaction acting on the objects by pressing them together. 2. Increase the coarse nature of the surfaces so that the coefficient of friction is also increased.
The heat from the friction upon two objects.
The normal force between the two objects and the coefficient of friction. Force of friction = normal force x coefficient of friction.
friction can not move stationary objects, it just opposes the relative motion between them.
"lubrication"