I was at work today hauling boxes 60 feet up on scaffolding and was wondering when I hauled the box up, would the forces acting on the box make it harder to pull up as I got higher?
To my knowledge, the only force on the box to reckon with in your question is the force of gravity. For all practical purposes it stays the same in that distance you're working with. Gravity does decrease the higher up you go, but you won't notice it at all just going 60 feet. The box might feel heavier as you go up higher just due to your muscles getting tired from hauling it up the scaffold.
