Perpendicular force pulley system

[Jorcamero]

i would like to know if the forces exerted by the load on pulley 1 and 2 are equal when the motor star running , or if in pulley 1 is exerted more force because the location of the load at the end of the lifting platform. The lifting platform only moves vertically, restricted by rails. What I want to know if the load will exert a perpendicular force that could create friction on the rails and how to calculate that perpendicular force

 

[berkeman]

View attachment 206627 i would like to know if the forces exerted by the load on pulley 1 and 2 are equal when the motor star running , or if in pulley 1 is exerted more force because the location of the load at the end of the lifting platform. The lifting platform only moves vertically, restricted by rails. What I want to know if the load will exert a perpendicular force that could create friction on the rails and how to calculate that perpendicular force

Welcome to the PF.

You don't show the location of the rails, but with the load offset like that, you will likely get pretty bad loading on the rails and get the associated friction losses in the bearings.

 

[Jorcamero]

But if the tension along the cord keeps constant once the motor start running, how can it be that forces exerted on pulley 1and 2 are different.

 

[berkeman]

But if the tension along the cord keeps constant once the motor start running, how can it be that forces exerted on pulley 1and 2 are different.

I didn't say that they were different. I said they are higher than they would be if the load were more balanced.

 

[sandy stone]

Note that the arrangement you describe is very similar to that on some forklifts, if you replace "lifting platform" with "forks", "motor" with "hydraulic cylinder", and "pulley" with "chain sprocket".