A square conducting loop with side length \(s\) is constructed from wire with cross-sectional area \(A\), volumetric mass density \(\delta\), and electrical resistivity \(\rho\). The loop falls vertically from rest under gravity \(g\) in the plane of the loop, such that its bottom edge enters a region containing a uniform horizontal magnetic field of magnitude \(B\) directed perpendicular to the plane of the loop. As the loop enters the field, it reaches a constant terminal speed \(v_T\) before its top edge enters the field region. Which of the following expressions represents the terminal speed \(v_T\)?