Question

method used to decrees friction

Answer 1

Hey mate ^_^

Here is ua answer.... ⏬⏬


1️⃣METHODS OF REDUCING FRICTION:
There are a number of methods to reduce friction in which some are discussed here.

2️⃣USE OF LUBRICANTS:
The parts of machines which are moving over one another must be properly lubricated by using oils and lubricants of suitable viscosity. 

3️⃣USE OF GREASE:
Proper greasing between the sliding parts of machine reduces the friction. 

4️⃣USE OF BALL BEARING:
In machines where possible, sliding friction can be replaced by rolling friction by using ball bearings. 

5️⃣DESIGN MODIFICATION:
Friction can be reduced by changing the design of fast moving objects. The front of vehicles and airplanes made oblong to minimize friction.


#Be Brainly❤️❤️

Answer 2

1. Oiling
2. Using rolling friction