Question

(11%) Problem 3: You are constructing a mobile out of identical toy helicopters, each of mass m = 28g . 4 identical sticks (each length l = 23.2 cm , and negligible mass), and thin string of negligible mass. The distance from the left-hand side of each stick to the attachment point of the sting supporting it are x1 through x4  respectively, as shown in the diagram. The tensions in the supporting strings are T1 through T4 as shown. You want to design the mobile so that it is in static equilibrium