Answers

2016-05-05T06:31:33+05:30
It is both friend as well as foe.
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2016-05-05T06:57:44+05:30
Friction is a friend, because: 1. It help us to walk, if there is no friction then we will not be able to walk or run. 2. We are able to hold the pencil and write on notebooks because of friction.etc............., Friction is a foe, because: 1. Our shoe's sole tears because of friction. 2. Friction also damages machines.etc.
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Hope this helps u.......!!... :) :)