👉 Frictional, the force applied by a material to its surface, which opposes movement. Used in mechanics, particularly physics, describing how particles move through materials like water or rubber.
👉 In mechanics, friction is a force that opposes motion. When two surfaces come into contact with each other, there is an opposing force between them called frictional force. Friction can be caused by static friction or kinetic friction. Static friction is the force that keeps objects from sliding down a surface due to their weight or gravity. Kinetic friction is the force that acts when objects are moving and try to resist slipping off surfaces.
👉 Friction is a force that opposes motion between two surfaces. It arises when there's an opposing resistance or opposition to movement between two different materials, such as metal and non-metallic. Friction can be caused by differences in material properties (such as density, coefficient of friction, surface roughness), temperature, and surface roughness.