Describe the various methods by which friction between two surfaces can be reduced.
There are different methods to reduce friction between two surfaces.
1. Making the surface smooth. Friction is less in smooth surfaces. This can be achieved by polishing the surfaces.
2. Use lubricants between the surfaces.
3. Rolling friction is less than sliding friction. Hence using ball bearings will help to reduce the friction.
4. Friction is a contact force. Reducing area of contact will reduce friction. So streamlining of objects will reduce friction.
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