BSOSF

I get all the other torque problems, but I can't figure out the ones with x and y directions, which our teacher calls "boom problems". Can anyone help?

1) a 10,000N shark is supported by a calbe attached to a 4m rod that can pivot at this base. A) Find the cable tension needed to hold the system in equilibrium if the angle of the pole is 60 degrees from horizontal at the upper end of the rod. b) Find the horizontal and vertical forces exerted at the base of the rod.

I can't even draw the picture for this one. If the rod is supporting the shark, then shouldn't the rod be at an angle , and the cable with the shark be hanging straight down? But this would create a 90 egree angle with the horizontal. How can it be only 20 degrees? I am so confused!

2) A horizontal uniform boom that weighs 200N and is 5.00 m long supports a load wL of 1000N. The angle of the cable that connects the boom to the wall is 40 degrees about horizontal. Find all forces acting on the boom. (let me know if there is some info missing here. A picture came with the problem, and I tried to include all information, but I might have misssed something).

3) A horizontal, uniform boom 4.50m long that weighs 250N supports a 2500 N load wL. A guy wire that helps to support the boom is atached 1.0m in from the end of the boom. The angle of the cable to the boom is 60 degrees. If the max tension that the cable can withstand is 3500N, how far out on the boom can a 95kg repairman walk without the cable breaking?

If you can give me some help on ANY of these problems (a method...something!) I would be SO grateful. We have a quiz tomorrow over boom problems and I am in trouble right now!