1. The problem statement, all variables and given/known data A diving board of length 3.00 m is supported at a point 1.00 m from the end, and a diver weighing 490 N stands at the free end . The diving board is of uniform cross section and weighs 295 N. Find the force 1) by the support 2) at the left end Picture Link: http://session.masteringphysics.com/problemAsset/1041644/8/YF-11-24.jpg 2. Relevant equations Static equllibrium equations 3. The attempt at a solution I have a ONE big doubt. I understand that the support would point upwards since it is just like normal forces. What about the force at the left end. Where will it point and why??? Another general doubt is about equllibrium. When should we use tau net is equal to zero and when should we use the total net force is equal to zero and when should we use both .. Thanks for helping!