define friction and give merits and demerits of friction?
Answers
Answer:
Friction is responsible for many types of motion. It helps us walk on the ground. Brakes in a car make use of friction to stop the car. Asteroids are burnt in the atmosphere before reaching Earth due to friction. It helps in the generation of heat when we rub our hands.
Explanation:
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Explanation:
Main advantages and disadvantages of friction. Advantage. Friction plays a vital role in life on Earth. Without friction almost nothing could be done. 1-It is difficult to walk on a slippery road due to low friction. When a person moves on ice, it becomes difficult to walk due to the low friction of the ice with the shoe.Some of the Advantages of Friction are:
We can walk with the help of friction between our shoes and the ground.
We can write with pencil or pen on the paper on the board using friction.
Cars or other vehicles uses friction (Breaks) to stop the vehicle.
Friction helps in running and walking on the ground or the floor.
Some of the Disadvantages of Friction are:
Sometimes friction produces heat in the machinery or its parts.
Friction makes wear and tear of the machinery
Extra energy is required to move the heavy body or vehicle or automobile.
Friction opposes the motion of the moving object.
Sometimes noise is produced in the machineries due to friction
Friction causes heat and cause energy loss.
Due to friction the automobile or machinery cosumes more fuel.