A 1.5-kg box is released from rest on a frictionless surface that is sloped at θ = 35◦ above the horizontal. After sliding 1.0 m down the slope, the box transitions smoothly to a rough, horizontal surface, slides for some distance, and then comes to a stop. If the coefcient of kinetic friction between the box and the horizontal surface is 0.12, how far along the horizontal surface does the box travel?

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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.