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Is there a force of friction between the wheels of a moving trainand iron rails? If yes, name the type of friction. If an air cushioncan be introduced

between the wheel and the rail, what effectwill it have on the friction?NCERT Class VIIIScience - Exemplar ProblemsChapter 12. Friction


Yes,friction is there between wheels of the train and iron rails and the type of friction is rolling friction.
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Yes, friction is there and it is Rolling Friction.
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I think the answer to 2nd part will be Sliding Friction
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