friction can increased by (a) air (b) powder (c) rough surface ( d) smooth surface
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11
Answer:
(c) rough surface
Explanation:
Friction can be increased by increasing the roughness of the surfaces in contact. For example, treading of shoes and tires is done to increase friction. When friction is undesirable we have to reduce the friction.
Answered by
0
Answer:
( c ) rough surfaces ...will be the answer
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