Question

Mention two methods by which we can reduce friction.​

Answer 1

$\huge\bold\red{ANSWER}$

Methods of reducing friction are :

★POLISHING : When we Polish a surface, it's roughness decreases. The surface becomes smooth and friction gets reduced. We also sometimes rub the surface with a fine sand paper to reduce their unevenness.

★LUBRICATION : We all know that when a few drops of oil are poured on the hinges of a door, the door moves much more smoothly. Bicycle and motor mechanics use grease between the moving parts of these machines. In all these cases, we want to reduce friction in order to increase efficiency.Oil-like substances, which help to reduce friction when put on a surface, are called lubricants. Lubricants can be liquid, semi liquid, solids.

★BALL-BEARING: We know that rolling friction is smaller than sliding friction. Sliding can be replaced by rolling , by use of ball bearingso. For example, we use ball bearings in shafts of motors, dynamos, axles of vehicles and so on.

Here I have mentioned 3 methods to reduce friction.

Hope it Helps Buddy ♥️♥️♥️

Answer 2

ANSWER :

Methods to reduce friction :

Following are the different methods that are used for reducing the friction:

• For objects that move in fluids such as boats, planes, cars, etc, the shape of their body is streamlined in order to reduce the friction between the body of the objects as the fluid.
• By polishing the surface, as polishing makes the surface smooth and friction can be reduced.
• Using lubricants such as oil or grease can reduce the friction between the surfaces.
• When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.

IF U FIND THIS HELPFUL, MARK IT AS BRAINLIEST