Part A At a given instant A has the motion shown in (Figure 1). Determine the acceleration of B at this instant. Express your answer in feet per second squared to three significant figures. Enter positive value if the acceleration is up the incline and negative value if the acceleration is down the incline. Figure B 3 ft aB = vec 1 of 1 > Submit Request Answer -1.5 ft- VA-3 ft/s 6 ft/s Part B ? ft/82 Determine the angular acceleration of the bar at this instant. Express your answer in radians per second squared to three significant figures. Enter positive value if the acceleration is counterclockwise and negative value if the acceleration is clockwise. vec ? rad/s