Engineering Statics Homework Problems. Problems have dynamic Geogebra diagrams and use the quantities extension.
Jay McCormack on Vector addition by summing scalar components - easy 3 months, 1 week ago
Gave some feedback: Ready to use
Cyril Crua commented on V-M 1: Concentrated forces 7 months ago
Many thanks for these excellent resources. I think there may be an inconsistency in sign convention in this and other beam exercises, as the shear and moment signs don't seem to match those in http://engineeringstatics.org/VM_sign_convention.html
William Haynes on Equilibrium of a rigid body: truss 8 months, 1 week ago
Saved a checkpoint:
When b=2.8, h=4, B=2, C=5, F=4, E=3, then Ay = 0, but Numbas calculates it as Ay = -1.7763568394002505*10^(-15) and marks 0 wrong, because it calculates percent error to be 100 %
abs(0 - 0.00000000000002)/(0.00000000000002) = 1.
Added precround(Ay,6) in Marking settings to avoid this. I don't know how to fix the root cause.