Question: The right-angle bar rotates clockwise with an angular velocity which is decreasing at the rate of (4 mathrm{rad} / mathrm{s}^{2}). Write the vector expressions for

The right-angle bar rotates clockwise with an angular velocity which is decreasing at the rate of $4 \mathrm{rad} / \mathrm{s}^{2}$. Write the vector expressions for the velocity and acceleration of point $A$ when $\omega=2 \mathrm{rad} / \mathrm{s}$.

y 3 0.4 m 0.3 m x

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