In the figure below the left-hand cable has a tension T1 and makes an angle of 42° with the horizontal. The right-hand cable has a tension T3 and makes an angle of 41° with the horizontal. A W1 weight is on the left and a W2 weight is on the right. The cable connecting the two weights has a tension 30 N and is horizontal. The acceleration of gravity is 9.8 m/s2. Determine the mass M2.
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