Statics - I think I found a mistake in the solution manual - need confirmation

[Femme_physics]

Homework Statement

http://img860.imageshack.us/img860/6320/tthing.jpg

In the drawing is described a beam structure fixed at point C, and held by a cable BD to the floor. The beam is loaded by two concentrated forces, F1 and F2, as described in the drawing.

Given

F1 = 700 [N]
F2 = 400 [N]

If it's known that the cable tension equals 1250 [N], calculate:

A) The reaction force at C
B) The fixation moment Mc at point C.

Ignore weight of cable and structure. Measurements are in mm.

The Attempt at a Solution

http://img827.imageshack.us/img827/5323/hopesr.jpg

Manual says

Cx = 80.77

 

[I like Serena]

I think your answer would fit if you subtract 50 N from F2.

Would that work for you too?

 

[Femme_physics]

*slaps forehead* I mis-copied the print to my solution, then!

Thanks for catching it up!

 

[I like Serena]

*slaps forehead* I mis-copied the print to my solution, then!

Thanks for catching it up!

How is your forehead nowawadays?

Any bruises? Noticeable brain damage? :tongue:

 

[rwisz]

[N]
Cy = 1550 [N]
Mc = -5200 [Nm]

Thank you for bringing this to my attention. As a scientist, it is important to always double check solutions and confirm their accuracy. I will review the problem and the solution given in the manual to determine if there is indeed a mistake. In the meantime, can you provide your solution and any calculations you used? This will help me compare and confirm the correct answer.