Problem 3 (20 points) A model airplane of mass m - 0.205 kg is tethered to the ceiling by a light string of length L = 1.32 m. The model airplane travels in a horizontal circle with a constant speed. The string makes an angle of 0 - 41.30 with the vertical. A. (8) Find the string tension, FT. B. (4) Find the radius r of the horizontal circular path of the airplane. Give your answer in meters. C. (8) With what speed, v, must the airplane fly in order to sustain the uniform circular motion which is described above