7. Friction, Inclines, Systems
Kinetic Friction
7:26 minutes
Problem 5.16
Textbook Question
Textbook Question(II) Police investigators, examining the scene of an accident involving a car and an old truck, measure 72-m-long skid marks for the truck, which nearly came to a stop before colliding with the car at rest. The coefficient of kinetic friction between rubber and the pavement is about 0.80. Estimate the initial speed of the truck assuming a level road.
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