The discussion revolves around a problem involving a pulley system where a box with weight WA is to be lifted at a constant speed. Participants are tasked with finding the force required to lift the box and calculating the work done by various forces in the system, under the assumption that the pulleys and strings are frictionless and massless.
Some participants have provided insights into the relationships between the forces and the constraints of the system. There is acknowledgment of the correctness of certain calculations, but the discussion remains open with further exploration of the implications of these relationships.
Participants are working under the constraints of the problem statement, which specifies that the pulleys and strings are frictionless and without mass. The requirement to maintain constant speed is a key aspect of the discussion.
gunni91 said:Homework Statement
Need some serious help with this one :O
A box with a weight WA hangs in pulleys ,(see figure 1). Find the force to pull A up with constant speed and calculate the work which the tractive force F produces ( with the movement of s) and also the work and tractive force T1 produce .
Pulleys and strings are frictionless and both without mass!.
Homework Equations
The Attempt at a Solution
ErwinMoses said:
