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A curve of radius 70 mm is banked for a design speed of 85 km/h ....

A curve of radius 70 mm is banked for a design speed of 85 km/h .

If the coefficient of static friction is 0.40 (wet pavement), at what range of speeds can a car safely make the curve? [Hint: Consider the direction of the friction force when the car goes too slow or too fast.]

Express your answers using two significant figures separated by a comma.


vmin, vmax = ????? km/h

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