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a.) Determine the optimum inclination angle for a 520 foot radius turn where traffic is expected...

a.) Determine the optimum inclination angle for a 520 foot radius turn where traffic is expected to travel at 55 mph, to the nearest degree (deg).

b.) A mass swings in a circular path while attached to a 15.8 m length rope of negligible mass. The rope makes  angle 25.0 degrees from vertical. Find the Speed of the mass as it orbits, in m/s.

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