A platform extending from a wall is held up by a triangle brace as shown in (Fig P3). The brace is attached to the platform 1.75 meters from the wall. The platform weighs 450 N, and is 2.5 meters long. a) If the brace can give a maximum of 1800 N (Parallel to the brace) of force before breaking, what is the maximum load the platform can hold at the edge?
b) The weight is removed and If a person weighing 500 N stands 1.25 meters from the wall, what is the force on the platform from the wall?
Please help!?