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You decide to get on one of the swing rides at the amusement park. The seat...

You decide to get on one of the swing rides at the amusement park. The seat is a 20 kg, 12-m long uniform board suspended by 2 cables. You have a mass of 65 kg and sit 3 m from the right cable. Each cable has a length of 40 m, a radius of 0.5 cm, and a Young’s modulus of 200x109 N/m2 . Assuming that you and the swing are in equilibrium, what is the tension in the left cable? By how much is the right cable stretched? Answer: TL = 257.25 N; ΔLR = 1.5 mm

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