Oy Synonyms

Oy. I have the feeling owing you is not a good thing.

The force X1 in KH with X1 in Ox forms a couple about Oy, of moment z1Xi.

Dealing in the same way with the forces Yi, Zi at P1, we find that all three components of the force at P1 can be transferred to 0, provided we introduce three couples L1, Mi, Ni about Ox, Oy, Oz respectively, viz.

Take, for example, the case of a sphere rolling on a plane; and let the axes Ox, Oy be drawn through the centre parallel to the plane, so that the equation of the latter is 1=cf.

In the critical case of 2BT= I it breaks up into two planes through the axis of mean moment (Oy).