Pin P is constrained to move along the curve defined by the lemniscate r = (4 sin 2θ) ft....

Pin P is constrained to move along the curve defined by the lemniscate r = (4 sin 2θ) ft. If the angular position of the slotted arm OA is defined by θ = (3t3/2) rad determine the magnitudes of the velocity and acceleration of the pin P when θ = 60°.