## Question:

Pin $\Rho$ is constrained to move along the curve defined by the lemniscate r = (4$\sin { 2\theta }$ ) ft . If the slotted arm OA rotates counterclockwise with a constant angular velocity of $\dot { \theta }$ = 1.5 rad/s , determine the magnitudes of the velocity and acceleration of peg $\Rho$ when $\dot { \theta }$ = 60° .