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CBSE Class 8 Answered

1.Explain four method by which friction between two solids surface in contact can be reduced. 

Asked by gspublicschool | 20 Mar, 2019, 10:50: AM
Expert Answer
Friction can be reduced 
- by applying lubricants on the surfaces.
- by polishing the surfaces.
- by using ball bearings/ rolling-element.
- by streamling the surface, this will reduce the area of contact between the two surfaces. 
Answered by Shiwani Sawant | 20 Mar, 2019, 12:51: PM
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