A yo-yo with a mass of 0.302 kg isswung in a vertical circle of radius 0.880m. At the top of the circle the yo-yo has a speed of 3.30 m/s, and at the bottom of the circle its speed is7.05 m/s. Find the tension in the stringtied to the yo-yo when it is at... (a) the top of the circle (b) the bottom of the circle A yo-yo with a mass of 0.302 kg isswung in a vertical circle of radius 0.880m. At the top of the circle the yo-yo has a speed of 3.30 m/s, and at the bottom of the circle its speed is7.05 m/s. Find the tension in the stringtied to the yo-yo when it is at... (a) the top of the circle (b) the bottom of the circle
Explanation / Answer
mass m = 0.302 kg radius r = 0.88 m Speed at the top v = 3.3 m / s Speed at the bottom v ' = 7.05 m / s (a) . Tension at the top T = ( mv^2 / r ) -mg =0.77765 N (b). Tension at the bottom T ' = ( mv ' ^2 / r) +mg = 20.01 N