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# A civil engineer wishes to redesign a curved roadway in such a way that a car will not have to rely on friction to round the curve without skidding.

A civil engineer wishes to redesign a curved roadway in such a way that
a car will not have to rely on friction to round the curve without
skidding. In other words, a car moving at the designated speed can
negotiate the curve even when the road is covered with ice. Such a ramp
is usually banked, meaning the roadway is tilted toward the inside of the curve. Suppose the designated speed for the ramp is to be 12.4 m/s (32.2 mi/h) and the radius of the curve is 33 m.
a.For the above example, suppose that the coefficient of static friction between the tires and the road is 0.35. What maximum speed could a car negotiate the exit ramp without skidding?

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