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vercingortix

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## Homework Statement

Bars BC and AB and dish OA are attached by a pin like in the picture. The dish has a constant angular velocity [itex]\omega\_{0}[/itex]. Find the angular acceleration of bars BC and AB.

## Homework Equations

Relative Motion Equations:

**v[itex]_{b}[/itex]**=

**v**+

**[itex]_{A}[/itex]****v[itex]_{A/B}[/itex]**

**a[itex]_{B}[/itex]**=

**a[itex]_{A}[/itex]**+[itex]\alpha_{A}[/itex]Xr[itex]_{B/A}[/itex]-[itex]\omega^{2}[/itex]r[itex]_{B/A}[/itex]

## The Attempt at a Solution

So far, I have this written down:

V[itex]_{A}[/itex]=[itex]\omega[/itex]r

**a[itex]_{A}[/itex]**=V[itex]_{A}[/itex][itex]^{2}[/itex]/r=[itex]\omega^{2}[/itex]r

**a[itex]_{B}[/itex]**=[itex]\alpha_{BC}[/itex]Xr[itex]_{BC}[/itex]-[itex]\omega_{BC}^{2}[/itex]r[itex]_{BC}[/itex]

Still just fumbling over these equations. Any help is appreciated.

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