1. The problem statement, all variables and given/known data A 5.00 m long rigid beam with a mass of 100.0 kg is supported at each end. An 80.0 kg worker stands on the beam, 4.00 m from the left support. 30.0 kg of brick are stacked on the beam 1.50 m from the left end of the beam. How much upward force does each support exert on the beam? Be specific by left support and right support? 2. Relevant equations I'm not really sure 3. The attempt at a solution I have no idea how to approach this problem.