# Example 4.3-2

#### Referring to the figure, derive the equation for the velocity and acceleration of point A using the following equations for fixed-axis rotation and relative motion.

Fixed-axis rotation equations.

v_{A} = ω x r_{A/O} a_{A} = α x r_{A/O} - ω^{2}r_{A/O}

Relative motion equations.

v_{A} = v_{B} + v_{A/B} a_{A} = a_{B} + a_{A/B}

#### What is the velocity and acceleration of point A if point B is fixed and A is rotating about B?