Question

three methods to reduce friction​

Answer 1

Explanation:

Methods for decreasing friction:

1 . Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.

2. Lubrication is another way to make a surface smoother.

3.Make the object more streamlined.

Answer 2

• Polishing the rough surface.
• Oiling or lubricating with graphite or grease the moving parts of a machine.
• Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and allow smooth movement as rolling friction is less than sliding friction.