coefficient of friction between the tires of Shirley's 1985 Ford Coupe and the dry pavement is 0.71. She doesn't drive the car often because it's becoming an antique, but she took it out for a gentle drive yesterday. While driving, she has to suddenly and forcefully brake when the light turned red. She probably shouldn't have been texting and driving! Her car (mass = 1.39x103 kg) skids to a stop with an acceleration magnitude of  _____ m/s2. Use the approximation g ≈ 10 m/s2.

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Q: L B i

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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.