a surface of marble is very smoot and plane does it has friction less surface comment on it
Answers
Friction is defined as the force which opposes the motion of an object on the surface it is in contact with. Friction has pros and cons such as friction makes it easy to walk on the roads without slipping which is the advantage for us. Whereas moving heavy objects becomes difficult because of the friction which is against us. Static friction, rolling friction, sliding friction, and fluid friction are types of friction.
Friction exists when the two surfaces that are in contact with each other are having irregularities on them. These irregularities get interlocked making friction to come into the picture. Therefore, it can be said that friction is dependent on the roughness and smoothness of the surface. Following are the advantages and disadvantages of friction:
Advantages of friction:
Friction between the feet and the ground makes it easy to walk and run on the ground without falling.
Writing on paper or on the board becomes easy because friction exists between the pen and paper or the board.
Disadvantages of friction:
Friction leads to wear and tear of the moving parts in machines and soles in shoes.
Heat is produced during friction which is a waste of energy in machines.
Friction can either be increased or decreased with the help of lubricants. Lubricants such as castor oil and grease help in reducing the friction and they are used in machines to reduce the wear and tear of the surfaces that are in contact and also makes the working smooth. By making grooves and treading in the objects, the friction between these objects and the surface can be increased.
It can be said that depending on the situation, friction can be considered to be evil or not.
Hope it helps ☺️☘️
Friction is defined as the force which opposes the motion of an object on the surface it is in contact with. Friction has pros and cons such as friction makes it easy to walk on the roads without slipping which is the advantage for us. Whereas moving heavy objects becomes difficult because of the friction which is against us. Static friction, rolling friction, sliding friction, and fluid friction are types of friction.
Friction exists when the two surfaces that are in contact with each other are having irregularities on them. These irregularities get interlocked making friction to come into the picture. Therefore, it can be said that friction is dependent on the roughness and smoothness of the surface. Following are the advantages and disadvantages of friction:
Advantages of friction:
Friction between the feet and the ground makes it easy to walk and run on the ground without falling.
Writing on paper or on the board becomes easy because friction exists between the pen and paper or the board.
Disadvantages of friction:
Friction leads to wear and tear of the moving parts in machines and soles in shoes.
Heat is produced during friction which is a waste of energy in machines.
Friction can either be increased or decreased with the help of lubricants. Lubricants such as castor oil and grease help in reducing the friction and they are used in machines to reduce the wear and tear of the surfaces that are in contact and also makes the working smooth. By making grooves and treading in the objects, the friction between these objects and the surface can be increased.
It can be said that depending on the situation, friction can be considered to be evil or not.