Extracted text: Question 1 In Figure 1 the hydraulic cylinder OA and link OB of length, b, are arranged to control the tilt of the load which has a mass, m, a centre of mass at G and acting at a height, h, above B when 0= 0°. The lower corner, C, is free to roll horizontally as the cylinder linkage elongates. Using the virtual work principle, determine the force, P, in the cylinder necessary to maintain equilibrium at a given angle, 0. G A B Figure 1 Variable Value Unit 800 mm h 500 mm 100 kg 36 degrees