CBSE - IX - Physics
What are the advantages and disadvantages of friction?
Advantages : It helps us to walk , various parts of the machine are able to rotate due to the friction between the belt and the pulley , it would be impossible to climb, fix nail, to drive if there were no friction.
Disadvantages : Wear and tear of machinery is due to friction , efficiency of machines decreases due to friction.
Rate this answer
You have rated this answer /10