what is friction and what is impulse force
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This article deals with the effects of friction on the final kinematic state of the ball, for any orientation of the cue. A method is given to obtain the impulsive friction.
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the action of one surface or object rubbing against another.It is a frictional force
In classical mechanics, impulse (symbolized by or Imp) is the integral of a force, , over the time interval, , for which it acts. Since force is a vector quantity, impulse is also a vector quantity. Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the same direction. it is impulse force
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