Consider a 1kg object. At x = 0, the object has initial velocity +v m/s. Then it is subjected to force Fx that varies with position as shown in the above plot. If the object stops moving at x = 5 m. Find its initial velocity v.  Answer (in m/s) to two decimal places.

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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.