1. The problem statement, all variables and given/known data A grid made of ropes is suspended by its four corners with strings tied to four different points on a building. Three of which are fixed and fourth is attached to a pulley which is in turn fixed to the building. Given data : Grid mass is 25 kilogram suspended at a height of 6m Gravity is 9.8 m/s^2 Length of strings used to suspend grid are 5m, 5m, 6m and 9m(tied to pulley). X and Y components of strings are given. https://imgur.com/a/7MHwl (Diagram) Calculate tension in each string. 2. Relevant equations I know how to find tension in two strings which suspend an object at a common point. How can I calculate tension which object is suspended at different points? 3. The attempt at a solution I am not from physics background and am a software developer. I understood basic tension calculations but couldn't work out for four strings suspending object at different points. P.S. -> I am new to physicsforums. I read the rules and checked existing posts but couldn't find a post I could understand and borrow from for my given problem. This is for an art installation. I need to calculate tension in strings as I have to order motors with appropriate stall torque for pulley winding/ unwinding. If I have created this post in the wrong section please let me know and I will move it to the appropriate section.