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Introductory Physics Homework Help
Assigning cosine and sines for axes
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[QUOTE="SteamKing, post: 5017817, member: 301881"] Your problem lies in a faulty understanding of basic trigonometry. You don't assign the sine and cosine to this axis or that axis, [I]a priori[/I]. What you do is analyze the given problem and apply trigonometry to solve for the components, the unknowns, whatever. In the problem above, you should draw the triangles formed by T[SUB]1[/SUB] and T[SUB]2[/SUB] with the coordinate axes and compute the components of each vector. Study Fig. 4.28 in particular. Sometimes, the way a book shows how to calculate the components of a given vector may not be the only way. That's where drawing the triangles helps. [/QUOTE]
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Introductory Physics Homework Help
Assigning cosine and sines for axes
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