Question

In what ways we can minimize the frictional force? Explain with examples​

Answer 1

Answer:

Polishing the rough surface. 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.

Answer 2

Dear Student,

Explanation :

→ Ways we can minimize the frictional force :

• 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.

→ Examples :

• A good example of this is a ball or wheel.

Reason : They roll to help reduce friction. Another way to reduce friction is with a lubricant like grease or oil.

Machines and engines use grease and oil to reduce friction and wear so they can last longer.