"(II) An Atwood machine (Fig. 11–16) consists of two masses, m_A = 7.0kg and m_B = 8.2kg , connected by a cord that passes over a pulley free to rotate about a fixed axis. The pulley is a solid cylinder of radius R₀ = 0.45m and mass 0.80 kg.
(a) Determine the acceleration a of each mass.
(b) What percentage of error in a would be made if the moment of inertia of the pulley were ignored? Ignore friction in the pulley bearings. Use angular momentum.
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