Solid friction is the force that resists the relative motion or tendency of motion between two solid surfaces in contact with each other. It is caused by microscopic irregularities on the surfaces that interact and oppose the movement. Solid friction is responsible for making it harder to slide, roll, or move objects across each other.
it is low friction i think
A solid
low friction
Friction is low on ice because ice has a very smooth surface, which reduces the amount of friction generated when objects slide across it. This is why it can be challenging to walk or drive on icy surfaces compared to other surfaces with higher friction.
There are various types of friction, including static friction (force between stationary objects), kinetic friction (force when two objects are sliding against each other), rolling friction (force when a round object rolls on a surface), and fluid friction (force when an object moves through a fluid like air or water).
Friction exists in all states of matter, whether solid, liquid, or gas. Of course, there is generally less friction when liquids or gas is involved, than there would be when two solid surfaces are involved.
because you need to slide down the hill....?
Friction is high on a carpet.
When solid surfaces rub against each other, this friction is called dry friction. It is the force resisting the relative motion of solid surfaces, such as two objects sliding against each other.
Friction wasn't invented, it is an interaction between objects : "Friction is the force resisting the relative lateral motion of two solid surfaces in contact, or a solid surface in contact with a fluid"
low