Define friction.what are the different type of friction?write advantages and disadvantages of friction
Answers
Answer:
Explanation:
Friction produces unnecessary heat leading to the wastage of energy. The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects. ... A lot of money goes into preventing friction and the usual wear and tear caused by it by using techniques like greasing and oiling.
Answer: Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
Rolling Friction,Fluid Friction,Sliding Friction and Static friction.
Disadvantages of friction:
It always resists the motion, so extra energy is required to overcome it.
It causes wear and tear of machines.
It decreases the life expectancy of moving parts of vehicles.
Since friction is very useful in some cases while harmful in some cases, friction is called a necessary evil.
Advantages of friction:
Friction enables us to walk freely.
It helps to support ladder against wall.
It becomes possible to transfer one form of energy to another.
Objects can be piled up without slipping.
Breaks of vehicles work due to friction.
It always resists the motion, so extra energy is required to overcome it.
Explanation: