need your help. I realized today, if you do not practice it becomes hard to understand simple concepts even you were once a science student :(
I am using this simple weight bar mechanism to exert horizontal pull on a string on the let side. Goal is to mark the scale on the right in kgs. Once the weight is on the right is moved to a certain mark(10kg), it should exert the tension of 10kg on the string on left. This I can measure with any hanging luggage scale or fish scale.
I need your help as to which physics law/equations helps to achieve that? I was thinking of Torque, but not sure how to then convert it back to equivalent mass units.
The small object with mass M2 is a fixed length object, but it can end up in any of that range when the right hand bar is horizontal. need also help to add that variability in the equation to see how that makes the same 10kg mark on the bar to be practically different, based on the angle at which the object M2 stops.
e.g. if I put a mark on the right bar at 10kg. I move the weight M1 to that point. To keep it horizontal I should apply the force of 10kg on the left side (which lets say is attached with a string). Once I have that, I expect there should be a small variation in the result, if the object M2 is at 60deg to vertical vs 30 degrees to vertical.
I hope I was able to state my problem clearly. If there is already existing question then happy to get a reference. I searched and still searching. maybe I am not using the correct terminology.