BecAuse if it has a rough surface it will take longer to fo down and it will hurt you butt
A very smooth surface or a smooth surface coated with a liquid, oil or a Teflon like substance.
Even seemingly smooth surfaces have microscopic imperfections that make contact points rough at a very small scale. When these contact points slide against each other, the imperfections create friction and resistance, even though the surface appears smooth at a larger scale.
the surface of this floor is very smooth.
the same reason you don't their legs are at the bottom The reason is that ... The frozen sea is very hard, bumpy and difficult to slide on so the penguins do not have the smooth easy surface you might imagine. Also the bumpy surface of the ice after a while will probably hurt their bellies. The reason is that ... The frozen sea is very hard, bumpy and difficult to slide on so the penguins do not have the smooth easy surface you might imagine. Also the bumpy surface of the ice after a while will probably hurt their bellies.
An air hockey table with the air turned on has almost no friction. Other than that, very smooth surfaces cause very little friction. If you use certain types of cleaner on hardwood floor, it can be turned into a surface with little or no friction (and you will fall an hurt yourself a lot. not suggested.)
Any very hard very smooth surface.
A smooth surface in friction refers to a surface that has low frictional resistance when in contact with another object. This typically results in less resistance when the two surfaces slide against each other, leading to smoother movement. Smooth surfaces have fewer irregularities that can cause friction, allowing for easier motion.
Ice has very little friction because its smooth surface allows objects to slide easily over it without much resistance. Additionally, a thin layer of water forms on the surface of ice when it comes into contact with other materials, reducing friction even further.
Surfaces with very little friction include ice, polished metal surfaces, and Teflon-coated surfaces. These surfaces reduce friction because they have smooth textures or surface coatings that allow objects to slide over them with minimal resistance.
its a thig or somthing like a tabla surface
It is reflected at the same angle to the normal. The normal is a line perpendicular to the surface.
Possibly if the wood has a very smooth surface