Two parallel, frictionless conducting rails separated by a distance \(d\) are tilted at an angle \(\theta\) above the horizontal. A uniform magnetic field of magnitude \(B\) is directed vertically upward throughout the region. A conducting rod of mass \(m\) and length \(d\) rests across the rails, perpendicular to the incline, and carries a constant externally supplied current \(I\) such that the magnetic force pushes the rod up the incline. Assuming the acceleration due to gravity is \(g\), what is the magnitude of the acceleration of the rod up the incline?