Answers

2015-10-03T19:30:40+05:30
I do want to support this statement as friction is a opponent force it opposes work being done. so to overcome this v need to use a lot of force. when v reduce friction by using some lubricants work can b done smoothly and saves energy and saves biodiversity.
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2015-10-04T16:06:49+05:30
Yes it decreases friction and done so slippery do it will be easier
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