Two masses, m1 and m2, are attached to a 2.40-m-long steel wire which runs over a light, frictionless pulley as shown. Assume the cross section of the wire is circular with a diameter of d = 4.00 mm,m1 = 3.05 kg,and m2 = 4.30 kg. The masses are released from rest and allowed to move freely. Compared with its length before the masses were attached, by how much has the wire stretched (in mm) while the masses are in motion? (Young's modulus for steel is 2.00 ✕ 1011 N/m2. Neglect the mass of the wire in your calculations.)

Two masses, m1 and m2, are attached to a 2.40-m-long steel wire which runs over a light, frictionless pulley as shown. Assume the cross section of the wire is circular with a diameter of d = 4.00 mm,m1 = 3.05 kg,and m2 = 4.30 kg. The masses are released from rest and allowed to move freely. Compared with its length before the masses were attached, by how much has the wire stretched (in mm) while the masses are in motion? (Young's modulus for steel is 2.00 ✕ 1011 N/m2. Neglect the mass of the wire in your calculations.)