The only force acting on a 2.0 kg body as itmoves along a positive x axis has an x component Fx 6x N,with x in meters.The velocity at x = 3.0 m is 8.0 m/s. (a)What is thevelocity of the body at x = 4.0 m? (b) At what positive value of xwill the body have a velocity of 5.0 m/s?

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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.