1. The problem statement, all variables and given/known data Two plasterers Bill and Dave of mass 45kg and 65kg respectively stand on a unofrm plan ABCDEF of length 4m and mass 40kg. The plank is supported at C and E where C is 1m from A and E is 1m from F. Plasterer Bill stands at B which is 0.5m from A and plasterer Dave stands at D which is 1.5m from F. a) Draw a diagram showing the above information b) Find the reaction at each support, giving your answers in N to 1 decimal place. 2. Relevant equations http://img164.imageshack.us/img164/9263/drawnqf5.jpg [Broken] I drew this on paint, seems to be correct. Thats a) done. 3. The attempt at a solution The question dosen't state anything about Equilbirum, but heres what I done: m(R): 0.5 x 45g + S = 40g + 1.5 x 65g S = 40g + 97.5g - 22.5g S = 1127N Sub this into: S + R = 150g R = 150g - 1127 R = 343N. However they are both completly wrong, I assume I am going wrong with thinking it is in equilbrium. Since it isn't, I'm not too sure on where to start. Any hints/help is very appreciated =)! Thank you.