일반물리학 1 — Equilibrium and Elasticity: Problem 49

49 In Fig. 12-50, horizontal scaffold 2, with uniform mass \( m_2 = 30.0 \text{ kg} \) and length \( L_2 = 2.00 \text{ m} \), hangs from horizontal scaffold 1, with uniform mass \( m_1 = 50.0 \text{ kg} \). A \( 18.0 \text{ kg} \) box of nails lies on scaffold 2, centered at distance \( d = 0.500 \text{ m} \) from the left end. What is the tension \( T \) in the cable indicated?