Consider an object of mass m = 2kg moving up a ramp with an initial speed (vi) of 10m/s. Suppose that the ramp make an angle θ = 30◦ relative to the ground. Given that the coefficient of static friction and the coefficient of kinetic friction between the surfaces of the ramp and the object are μs = 0.6 and μk = 0.5 respectively. (a) Find the acceleration of the object as it slides up. (b) How far does the object move along the ramp? (c) Does the object move down the ramp after it reaches the maximum height (Justify your answer with calculation)?

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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.