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

1. Jun 26, 2011

Femme_physics

1. The problem statement, all variables and given/known data

http://img860.imageshack.us/img860/6320/tthing.jpg [Broken]

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.

3. The attempt at a solution

http://img827.imageshack.us/img827/5323/hopesr.jpg [Broken]

Manual says

Cx = 80.77

Last edited by a moderator: May 5, 2017
2. Jun 26, 2011

I like Serena

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

Would that work for you too?

3. Jun 26, 2011

Femme_physics

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

Thanks for catching it up!

4. Jun 26, 2011