Question

what is meant by frictional force​

Answer 1

Answer:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. ... Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact

Answer 2

Answer:

FRICTIONAL FORCE:

• Frictional force is a force that opposes relative motion between systems in contact.
• It is parallel to the contact surface between systems and always in a direction that opposes motion or attempted motion of the systems relative to each other.
• If the two systems are in contact and moving relative to one another, then the friction between is called kinetic friction.
• When objects are stationary, static friction can act between them.
• The static friction is usually greater than the kinetic friction between the objects.