Question

Explain the different types of friction ​

Answer 1

Answer:

There are 4 types of Static, sliding, rolling and fluid friction. static sliding and rolling ,friction occurs between solid surfaces. Static friction is strongest followed by slinding fiction and then rolling friction which is weakest find friction orcas in folding, which are liquid or gases.

Explanation:

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Answer 2

ANSWER:-

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THE DIFFERENT TYPES OF FRICTION ARE:-

${\bold{\boxed{\mathscr{\:Rolling\:Friction}}}}$

➠It is the resistance produced when a rolling body moves over a surface. Rolling friction has a lesser magnitude than sliding friction. For example, small wheels in the suitcase of very less friction and make it easy to carry heavy luggage.

The type of friction acting on a particular object can be changed. For example, ball bearing convert sliding fiction into rolling friction and are used in machines to ensure smooth motion and prevent wear and tear.

${\bold{\boxed{\mathscr{\:Sliding\:Friction}}}}$

➠This is the frictional force between two surfaces when one body or object moves or attempts to move over the other. Sliding friction is the moment of force required to retain the state of motion of the moving object at the same speed. As an example, when you apply force to an already moving box to keep it moving on the floor it with the same speed, the force determine sliding friction.

However, static friction is always somewhat greater than sliding friction, because it is always easier to move an already moving object then moving a stationary object.

${\bold{\boxed{\mathscr{\:Static\:Friction}}}}$

➠It is the friction that works between two surfaces which are in contact, but there is no relative movement between them. Static friction is the amount of force applied at the ìnstant when an object starts moving from its state of rest. For example, when you push a heavy box on the floor, the force that you put to start it moving on the floor determines the stactics friction.

${\bold{\boxed{\mathscr{\:Fluid\:Friction}}}}$

➠This friction can be seen in fluids, (i.e. liquids and gases). This force poses movement with in the fluids. Fluid Friction is also known as Drag.

Air exerts force on the moving objects, opposing their motion. For example, when you stop paddling your bicycle, it slows down and after sometime, stops moving. This is not only because of rolling friction. Even the frictional force exerted by an aeroplane flying in the air. Similarly, a boat stops when a boat man stops rowing it in water, due to frictional force exerted by water on the motion of the boat.

Fluid friction depends on the nature of the fluid. For example, it is easier to stir a glass of water as compared to a glass of honey. This is because honey being thicker or more viscous, offers greater friction.

The fluid friction on an object also depends on its speed with respect to the fluid. Higher the speed, higher the fluid friction acting on the object.

Shape of an object affects the fluid friction experienced by it. Objects experiencing fluid friction loose some energy to overcome this resistance. Therefore, bodies of the objects are designed in such a way that they have to work least against fluid friction. Boat, ships, airplanes, etc., are therefore streamlined in shape.

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