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Byju's Answer
Standard VIII
Physics
Rolling Friction
Friction can ...
Question
Friction can be increased by
(a) making the surfaces smooth.
(b) lubricating the surfaces.
(c) using ball bearings.
(d) making the surfaces rough.
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Solution
(d) making the surfaces rough
Friction increases with roughness.
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Similar questions
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Friction can be increased by
(a) using ball bearings between the two surfaces.
(b) making the surfaces rough.
(c) lubricating the surfaces.
(d) using streamlined shapes.
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Frictional force between two surfaces can be increased or decreased by making the surfaces rougher or smoother.
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Is there only one way of increasing friction than only making the surface rough?
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Can we reduce friction to zero by polishing surfaces or using large amount of lubricants ?
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Friction can be reduced to zero by applying lots of lubricants between surfaces.
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