Two blocks of rubber, each 80 mm long by 40 mm wide by 20 mm thick, are bonded to a rigid support mount and to a movable plate as shown. When a force P-2,800 N is applied to the assembly the plate deflects 8 mm horizontally. 40 mm- 20 mm L-80mm 80 mm W = 40mm P = 2800 174 X Determine (t) the shear stress in the rubber block: MPa Shear modulus (G) of the rubber used for the blocks: 1740 X MPa (1)