Recent content by FistLength

Thanks

Why can't you look at work done by the string and work done by gravity in the same way you would for the example of friction vs tension acting on a block moving horizontally at a constant velocity. In the latter you say add the net work, in the former we are supposed to only look at one? Why...

Ok I am kinda making sense of this. I don't understand the left hand side/right hand side of what you are saying. Is it possible to write a simple equation for me to see what you are talking about for both instances? Or another way to explain?

potential energy = mass*gravity*height The work done by the tension is equally opposed by gravity, and net work on the block is 0, yet it gains potential energy. Say instead of vertical we moved the block horizontal on a table at constant velocity. We would say that there is no change in...

Homework Statement Lifting an object from point A to point B with a tension T in the string at constant velocity. What is the work done on the object? Homework Equations Work=Force x distance The Attempt at a Solution Net force = T - mg Net F = 0 because acceleration = 0 T =...