It then presume the friction is very small and presume no friction.
In fluid and piping, it mean any pressure drop term is due to fluid motion and dispersion alone.
The force is greater on a rough surface compared to a smooth surface, due to the increased friction between the surfaces. The rough surface provides more resistance to motion, requiring more force to overcome the friction.
A smooth and polished surface will typically have the least friction due to reduced roughness and irregularities that can impede motion. Materials like ice or Teflon are known for their low friction characteristics because of their smooth surfaces.
Depending on the roughness or smoothness of the surface, it will increase friction if it is rough,(which has more microscopic hills and valleys). If the surface is made of a smooth material, it will decrease friction
The coefficient of friction between a perfectly smooth body and a very rough body would be close to zero because a smooth body has no surface irregularities to create friction with the rough body. Friction occurs due to the interaction of surface irregularities, so if one surface is perfectly smooth, there would be minimal friction.
A smooth surface will produce the least amount of friction compared to a rough surface. Friction is caused by the resistance when two surfaces slide against each other, and smoother surfaces have fewer microscopic irregularities that create friction. The coefficient of friction is lower for smooth surfaces.
Because friction is less on smooth surfaces. Smoother the surfaces, lesser the friction.
Even though the surface appears smooth.at the microscopic level the surface has some peaks and cracks .when it slides over any other surface friction occurs. the seemingly smooth surface has some friction.
Yes, a smooth surface reduces friction because there are fewer microscopic irregularities that can create friction between surfaces. This results in less resistance when two objects slide or move against each other.
The force is greater on a rough surface compared to a smooth surface, due to the increased friction between the surfaces. The rough surface provides more resistance to motion, requiring more force to overcome the friction.
lubrication
It is on smooth surfaces because the amount of friction is less.
A smooth and polished surface will typically have the least friction due to reduced roughness and irregularities that can impede motion. Materials like ice or Teflon are known for their low friction characteristics because of their smooth surfaces.
It is difficult to strike a match on a smooth surface because the friction needed to ignite the match head is lacking. Matchboxes and striker surfaces are designed to provide enough friction for the match head to ignite when rubbed against them. Smooth surfaces do not create enough friction to generate the heat required to light the match.
Depending on the roughness or smoothness of the surface, it will increase friction if it is rough,(which has more microscopic hills and valleys). If the surface is made of a smooth material, it will decrease friction
The coefficient of friction between a perfectly smooth body and a very rough body would be close to zero because a smooth body has no surface irregularities to create friction with the rough body. Friction occurs due to the interaction of surface irregularities, so if one surface is perfectly smooth, there would be minimal friction.
A smooth surface will produce the least amount of friction compared to a rough surface. Friction is caused by the resistance when two surfaces slide against each other, and smoother surfaces have fewer microscopic irregularities that create friction. The coefficient of friction is lower for smooth surfaces.
On a smooth surface because there is less friction to slow it down.