1. The problem statement, all variables and given/known data A 1 200-N uniform boom at 65 degrees to the vertical is supported by a cable at an angle of 25 degrees to the horizontal . The boom is pivoted at the bottom, and an object of weight = 2 000 N hangs from its top. Find the tension in the support cable 2. Relevant equations 3. The attempt at a solution I have the answer but I just don't understand how it works What does blue square time red square mean? The red square means horizontal tension and the blue square means the vertical distance between the cable attaching point and the ground (as shown in the diagram below), why do you multiply them with each other?