Recent content by mightysteve

I don't think the attatchment was working before, but it seems to be working now.

It's in the attatchment. I don't know which one is correct but it has to be one of the given ones (400, -400, 14, -14 or 414 [all in N/mm^2])

Oops, that was a mis-type. the question says 15 mm, not 12 mm. so it should say 15 / 5000 = 0.003

Oh yeah, I was working in mm just because all of the potential answers were in mm so i figured it was easier to not have to convert at the end. If it was a unit error it would be out by a factor of 10 though wouldn't it?

Ooer managed to neglect actually attatch the problem. Here it is (I hope)

Hullo. Hoping someone can help me with this Q off a statics past paper. It's one of those things that I'm sure is ridiculously easy but I seem to be missing something (possibly very obvious.) It's in the attatchment by the way. my attempt: strain = extension / o.g.length = 12 / 5000 =...

Aah, i see. Thanks very much

Hullo was wondering if anyone could help me. In dimensional analysis using then buckingham pi theorum, I'm not sure how to express an angular velocity in terms of basic dimensions (i.e M (mass), L (length), T(time), \Theta (temp). I know an angular velocity is revs/s or rad/s so its going to...

Wayhey, I understand! Thanks a lot, really appreciate the help.

The entire derivation. I understand that we want a differential equation with d\theta on the bottom, instead of dt. But I didn't really follow any of the getting there (so the whole part marked with the asterisk. Sorry to be a pain!

Could anyone possibly elaborate on the bit where you used chain rule to make the differential equation terms of d theta rather than d t because I didn't understand that at all. Thanks