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A given highway turn has a 110 km/h speed limit and a radius of curvature of 1.35km. What banking angle (in degrees) will prevent cars

A given highway turn has a 110 km/h speed limit and a radius of curvature of 1.35km. What banking angle (in degrees) will prevent cars from sliding off the road, assuming everyone travels at the speed limit and there is NO friction present?

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