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PLZZ EXPLAIN BRIEFLY
1.LIMITING FRACTIONAL FORCE
2.KINETIC FRICTION
3.ROLLING FRICTION
Answers
❕LIMITING FRICTIONAL FORCE:- The maximum friction that can be generated between two static surfaces in contact with each other. Once aforce applied to the two surfaces exceeds the limiting friction, motion will occur. For two dry surfaces, the limiting friction is a product of the normal reaction force and the coefficient of limiting friction.❕
❕KINETIC FRICTION:- Kinetic friction, also known as sliding friction or moving friction, is the amount of retarding force between two objects that are moving relative to each other. ... The normal force is the amount of force perpendicular to the surfaces that are in contact, or the force holding the objects together.❕
❕ROLLING FRICTION:- Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on surface. It is mainly caused by non-elastic effects. On a railway platform, or bus stop, we often notice that small children
can easily pull a suitcase fitted with wheels. It is because of the reduced friction, that makes it easy for the child to pull along the suitcase.
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