Question

what are different methods to reducse the friction?(5 marks)​

Answer 1

1.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.

1.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.2.Friction is reduced by polishing the surface, as polishing makes the surface smooth.

1.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.2.Friction is reduced by polishing the surface, as polishing makes the surface smooth.3.Using lubricants such as oil or grease can reduce the friction between the surfaces.

1.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.2.Friction is reduced by polishing the surface, as polishing makes the surface smooth.3.Using lubricants such as oil or grease can reduce the friction between the surfaces.4.When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.