You are a forensic scientists and have called to examine skid marks at a crime  scene after a car locked its brakes during emergency breaking, and the car slid  along the road. There are ripped off bits of tire and small melted sections of thje  road for the skid marks that are 290m long. Assuming that the kinetic friction  coefficient is 0.60, you must determine how fast the car was going when the wheels

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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.