A 1000-kg load is suspended from the end of a horizontal boom. The boom is supported by a cable that makes an angle of 35 degrees with the boom.
a) What is the weight of the load?
b) What is the tension in the cable?
c) What is horizontal force on the boom?
d) What is the vertical equilibrium component of the tension in the cable?

Diagram here: http://highered.mcgraw-hill.com/sites/dl/free/0070735824/582661/mhr_calculus_sample_ch06.pdf
pg. 53, question #9

I figured out question a and got help with b, however I'm stil unsure of how to figure out question c

Question

A 1000-kg load is suspended from the end of a horizontal boom. The boom is supported by  a cable that makes an angle of 35 degrees with the boom.
a) What is the weight of the load?
b) What is the tension in the cable?
c) What is horizontal force on the boom? 
d) What is the vertical equilibrium component of the tension in the cable?

Diagram here: http://highered.mcgraw-hill.com/sites/dl/free/0070735824/582661/mhr_calculus_sample_ch06.pdf
pg. 53, question #9 

I figured out question a and got help with b, however I'm stil unsure of how to figure out question c

anonymous · Answer

Question c isn't really clear. Whether it ask for horizontal force on the boom by the CABLE or by the HINGE.

marissag · Answer

I have no idea which of those it's asking for,  that's all the information that is given in my textbook unfortunately. Since the other parts of the question is relevant to the cable, I'd guess they mean the force on the boom by the cable.

anonymous · Answer

If that's what asked, the force is simply
$$F=T\cos{35^o} $$ You Found T earlier.

marissag · Answer

Thank you!

anonymous · Answer

Anytime :)