Whilst I'm usually decent at physics this chapter seems to go right over my head. The book problems right now are
"A uniform bridge 20.0m long and weighing 4.00 x 10^5 N is supported by two pillars located 3.00m from each end. If a 1.96 x 10^4 N car is parked 8.00m from one end of the bridge, how much force does each pillar exert?"
I have no idea where to start. They give me a few equations earlier in the chapter but those are all about rotation, and there seems to be no rotation in this problem. I don't exactly know how I'd draw a force diagram here. I know mg, normal force, and all but I'm not sure how I'd find how much force is exerted on each pillar.