- #36
sophiecentaur
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More of an opinion than an explanation.A.T. said:Which is wrong, as I explain in post #22.
The trouble with your thesis is that it applies at every point in any mechanical arrangement (all the way along a rigid rod). So is it helpful? There is a direct analogue with electrical circuit methods where it's only nodes that are of any interest and, by the use of simple +/- signs, you can solve anything that's been specified sufficiently. But I already said it's just a matter of preference
Do you have an example where that doesn't apply? That's the basis of post #1.sophiecentaur said:I already addressed the point that there has to be a reaction force in order for work to be done.