Answers

2015-12-14T22:11:15+05:30
Soles of shoes and tyre are treated to increase friction to increase their grip on a particular surface otherwise they would slip off and we would fall down due to absence of friction.
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2015-12-14T22:56:10+05:30
Soles of shoes and tyres are treated to increase friction so that they can make a grip and prevent sliding and sliping while the object is moving. friction is also needed to move.
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