Two children with masses 31 kg on the left and 45 kg on the


Two children, with masses 31 kg (on the left) and 45 kg (on the right), sit at opposite ends of a 3.2 m long seesaw with mass 23 kg, with the fulcrum at its midpoint.

Part A: With the seesaw horizontal, find the net torque on the seesaw.

Part B: With the seesaw horizontal, find its angular acceleration. Please include the appropriate units.

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Physics: Two children with masses 31 kg on the left and 45 kg on the
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