A car starts from rest and accelerates along a straight highway. The car’s engine produces a constant force of 7000 N that drives it forward. The driver finds that his acceleration decreases the faster he goes and that his speed eventually maxes out. What is the maximum speed the car reaches? Ignore friction between the tires and the road. The density of air is 1.2 kg/m3, the drag coefficient of the car is 0.5, and its cross-sectional area is 4 m2

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Q: F

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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.