A 6.0 Kg block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force of 12.0 N.  Find the speed of the block after it has moved 3.0 m if the surfaces in contact have a coefficient of kinetic friction of 0.15.*

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.