IIT JEE , AIEEE Forum - Physics , Mechanics

uday_zingtudor

Hey varun,

What have ya written man!!!

Do ya know that the co-efficient of static friction is greater than coefficient of kinetic friction.

So when u apply some force on a block and if it is less than

_sN , then the frictional force acting on the body will be equal to the force applied.

Now if u go on increasing the force upto

_sN then the frictional force wud be equal to

_sN when the block is about to move.

Now once the block is set into motion coefficient of kinetic friction comes into action!!!

That means once the motion starts the frictional force acting on it wud be

_kN and it remains the same throughout its motion!!!

And as

_s >

_k , kinetic friction will be greater than static friction if and only if the force applied on the block before its motion is less than

_kN.

~Cheerio!!!

And @varun , answer proper before u ask 4 rates.And firstly why do ya need rates man?? Wud u gain any fame??

I don't want any rates.

A 'rate' shows a person's satisfaction with the answer!!

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