The loaded cab of an elevator has a mass of 2.6 x 10^3 kg and moves 183 m up the shaft in 22 s at constant speed. At what average rate does the force from the cable do work on the cab? I've got the formula for average power, but that requires the work over the time. I only have the time. How can I obtain the work from what I've got? I know that for the work itself I need the Force involved, so I think of F = ma, but if the velocity is constant that means the acceleration is 0. Am I doing this right? If so, what do I need to do next? If not, what should I do instead?