(Solved): A circular plate of 120mm radius is supported by two bearings A and B as shown. The plate rotates ...

A circular plate of $120\mathrm{mm}$ radius is supported by two bearings $A$ and $B$ as shown. The plate rotates about the rod joining $A$ and $B$ with an angular velocity of $23\mathrm{rad}/\mathrm{s}$ increasing at the rate of $68\mathrm{rad}/{\mathrm{s}}^2$. It is known that, at the instant considered, the rotation is clockwise when viewed from $A$. 1. Determine the velocity of $E.{\mathbf{v}}_E=?\mathbf{i}+?\mathbf{j}+\mathbf{k}(\mathrm{m}/\mathrm{s})$ 2. Determine the acceleration of $E.{\mathbf{a}}_E=?\mathbf{i}+\mathbf{j}+?\mathbf{k}$ $\left(\mathrm{m}/{\mathrm{s}}^2\right)$