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InterviewSolution
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Explain the terms limiting friction , dynamic friction and rolling friction . |
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Answer» Solution :LIMITING FRICTION : Frictional forces always oppose relative motion between the bodies . These forces are self adjusting forces . Their magnitude will increase upto some extent with the value of applied force . The maximum frictional force between the bodies at rest is CALLED "limiting friction ". Dynamic (or) kinetic friction : When applied force is equal to or greater than limiting friction then the body will move. When once notion is started then frictional force will abruptly falls to a minimum value . Frictional force between moving bodies is called dynamic (or) kinetic friction Kinetic friction is always less than limiting friction . Rolling friction : The RESISTANCE encountered by a rolling body on ASURFACE is called rolling friction . |
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