The cherry picker device is lifted off its wheels onto four legs, two at A and two at B, before the worker ascends. The vehicle weighs 2000lb with a center of gravity shown. The boom weighs 300lb and may be considered a uniform slender rod. The worker with gear weighs 200lb and is standing with center of gravity as indicated. Find the reaction forces in each leg when the device is stationary as shown and when the working is being accelerated by the device 0.deltadeltadeltadelta ft/s^2 upwards.