The Physics of A Badminton Net

This past weekend, my family and I put up a badminton net in our backyard and as we assembled the pieces together, I was reminded of an old concept that we learned in Physics, which gave me an opportunity to revisit the chapter in FORCES. In this case, my dad tied the net to a tree trunk and on one end tied the other side to a pole. The tension force of the string on each side of the net illustrates the concept of forces. As shown below, from the left, both ends of the net are tied to a section of the tree trunk while on the right, both ends are tied to a pole:

Because the net does not move in the horizontal or x direction, the net force in the horizontal direction must equal and cancel each other. Thus, the tension forces in T1 and T3, which apply to the two top ends of the net, must be equivalent and the tension forces in T2 and T4, which apply to the two bottom ends of the net, must also be equivalent. Furthermore, since there is no movement in the vertical or y direction, the weights of the tree and the net's white stand, to which the net is tied to, must be equivalent to the normal force for both objects.