An 8.9kg watermelon is placed at one end of a 6.1m, 238 N scaffolding supported by two cables. One supporting cable is at the opposite end of the scaffolding, and the other is 0.76 m from the watermelon. The acceleration of gravity is 9.8 m/s^2. How much tension is in the cable at the end of the scaffolding? How much tension is in the cable closest to the watermelon? I really have no clue how to go about this. Any relevant formulas I should know?