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The coefficient of kinetic friction of rubber on dry concrete is 0.8 and on wet concrete 0.5. Starting from a certain speed, the minimum time

The coefficient of kinetic friction of rubber on dry concrete is 0.8 and on wet concrete 0.5. Starting from a certain speed, the minimum time of your car to decelerate to a full stop is 5 seconds when the road is dry. Starting from the same speed, what is the minimum time of your car to decelerate to a full stop when the road is wet? (in s)

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