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Which of the following statements about frictionis true?(a) Friction can be reduced to zerob) Frictional force cannot accelerate a body(c) Frictional force is proportional to the area ofcontact between the two surfaces(d) Kinetic friction is always greater than rollingfriction |
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Answer» I think d........... I think (c)........ answer (c) is the right answer (a)....is correct.. .. the answer is a,c,d because when friction is ready is it is zero it access static addiction and the frictional force is that directly proportional to the area of contact between the two surfaces because you can take it as example of rolling fiction and kinetic friction is always greater than the rolling friction because it can have some energy more than rolling friction |
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