what is friction and why it is necessary?
lakshu11:
are u idiot if there is no friction how we walk
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Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.Friction between our shoes and the floor stop us from slipping. friction between tyres and the road stop cars from skidding. friction between the brakes and wheel help bikes and cars slow down.
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friction:..... This force is static friction force, which is the force exerted on the surface by another when there is no motion between the two surfaces. Static friction force acts in response to a force trying to cause a stationary object to start moving.
why it is necessary?...
1 )Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.
2)Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.
3)Stopping a car or bike (brakes)
why it is necessary?...
1 )Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.
2)Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.
3)Stopping a car or bike (brakes)
delhi
and u r in which class dear?
nice.
yes.of course
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