Recent content by thomas55

My train of thought might be wrong but here goes: I meant 10 instead of 1 as that would be the centroid Y co-ordinates of the bottom shape The centroid Y co-ordinates of the top shape is 10 but if you take into account the rest of the shape its 10 + 200 = 210 fixing my calculations i now get...

Im still kinda lost but i have a answer that looks plausible YCM = (m1y1 + m2y2 + m3y3)/ (m1 + m2 + m3) YCM = 3600 x 1 + 3600 x 100 + 4800 x 210) / (3600 + 3600 + 4800) YCM = 114.3mm Im not sure if i have the y values right though.

Ok I am completely stuck on this question, i have some idea on how to do it and know it is to do with moments but i can't figure out where to take the moments. Homework Statement Calculate the value of Y-Bar for the I-section shown below, where Y-Bar is the vertical height of the centroid...