From where frictional force comes ? what are the advantages and disadvantages of friction .
Answers
Explanation:
Advantages and Disadvantages of Friction
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.
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Explanation:
What are the advantages and disadvantages of force of 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.
Friction's advantages include:
*Being able to walk across a surface without slipping. This is static friction.
*Writing on a piece of paper with a pencil or a pen. This is. sliding friction. * Driving a car across the road surface. This is. rolling friction. * Jumping out of an airplane with a parachute. This is.