Consider the three-pulley arrangement shown in the figure below. The three masses m_1, m_2 and m_3 have the values 2.0 kg, 5.0 kg, and 4 kg...

Consider the three-pulley arrangement shown in the figure below. The three masses m_1, m_2 and m_3 have the values 2.0 kg, 5.0 kg, and 4 kg respectively. All the pulleys are frictionless, and the strings are massless. What are the tensions in all the strings and what are the acceleration of the masses?