Recent content by Benson

Hi All, I'm currently teaching an introductory thermo and fluids course to 2nd year college diploma students who come through vocational high schools (so their mechanics conceptual fundamentals and mathematical fundamentals aren't great). I've started by giving them an overview of all the...

Filip, What you're saying about the two cases makes sense, but both of my solutions have both masses going left. So neither case has the masses passing through each other. Also, both have the mass that was originally moving left slowing down somewhat; one case more so than the other, so there...

Hi, I have a similar question but with actual values of e and initial velocities given. The part I don't understand is, strictly speaking, e = |v2-v1|/|u2-u1|. If I know the relative velocity before collision, and I know e, then |v2-v1| = e*|u2-u1|. So, for example, in my quesion, e=0.4...

Hi again, I think I solved my problem... Using the same coordinate system they are using, the stress state on an element 90 degrees clockwise from element A would be pure shear (all direct stresses are zero), but this time in the x-z plane, and the magnitude would be Tr/J + 4V/3A. This...

Hi guys, I have a general question about torsion in shafts. I know that the shear stress due to pure torsion of a solid round shaft is a maximum over the entire surface, and is of magnitude Tr/J. However, how does one account for the direction of the shear stress when performing a Mohr's...