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2015-11-18T16:27:21+05:30

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Ways to reduce friction
1. by applying oil or Greece
2. by smoothing the surface
3. using ball bearings
4. using fluids
5.snow skin can also used to reduce friction

Ways to increase friction
1 . by using grip for shoes and Tyre 
2. adding weight to object 
3 . removing lubricants from the object
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