Calculating Beam Moment: Equation for Couple Acting on Supported Beam

[dantiff]

Homework Statement

Hi I have a beam that is supported at one end and at the other has a point moment (couple) acting on it at the end point. I was wondering the follwing equation is correct for the moment at any point on the beam.

M= Cx/L

Where M is the moment, C is the force of the couple, x is the location where the moment is wanted and L is the length of the beam?

Thanks
Dan

 

[dirk_mec1]

Why would you think that?

 

[minger]

Draw a shear/moment diagram. (hint, the moment can only vary if there is shear).