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Introductory Physics Homework Help
Describing Rolling Constraint for Rolling Disk With No Slipping
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[QUOTE="haruspex, post: 6827372, member: 334404"] Your working should have partial derivatives in a few places. Looking at the diagram, it seems self-evident that the angle φ is the current direction of rolling, i.e. tan φ=dy/dx. But I don't understand how in your working you substituted cos φ for x/R and sin φ for y/R. That would imply y/x=tan φ. [/QUOTE]
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Introductory Physics Homework Help
Describing Rolling Constraint for Rolling Disk With No Slipping
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