The space truss shown below is supported by a ball and socket joints at A, B, E, and F. It is subjected to a vertical (negative z direction) external force of 450 lb at D. Determine the force in member BD, and state whether it is in tension or compression. B 6 ft D A 2 ft 450 1b C 8 ft EThe space truss shown below is supported by a ball and socket joints at A, B, E, and F. It is subjected to a vertical (negative z direction) external force of 450 lb at D. Determine the force in member BD, and state whether it is in tension or compression. B 6 ft D A 2 ft 450 1b C 8 ft E