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Solve the given question:

Question: A roadway for stunt drivers is designed for racecars moving at a speed of 88 m/s. A curved section of the roadway is a circular arc of 550 m radius. The roadway is banked so that a vehicle can go around the curve with the friction force from the road equal to zero.

A- At what angle is the roadway banked?

Please show each step of calculation in detail for help.

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