Rigid bar ABC shown in the figure is supported by a pin at bracket A and by tie rod (1). Tie rod (1) has a diameter of 4 mm, and it is supported by double-shear pin connections at B and D. The pin at bracket A is a single-shear connection. All pins are 5 mm in diameter. Assume a 550 mm, b-300 mm, h 450 mm, P-975 N, and 0-55°. Determine the following: (a) the normal stress in rod (1) (b) the shear stress in pin B (c) the shear stress in pin A D Answers: (1) a B (a) Orod MPa (b) Tpin 8" 2MPa tio (c) Tpin A MPa