일반물리학 1 — Equilibrium and Elasticity: Problem 3

3 The system in Fig. 12-16 is in equilibrium, with the string in the center exactly horizontal. Block A weighs 35 N, block B weighs 45 N, and angle \(\phi\) is \(35^\circ\). Find (a) tension \(T_1\), (b) tension \(T_2\), (c) tension \(T_3\), and (d) angle \(\theta\).