7. The base of an automobile jack stand forms an equilateral triangle of side length 250 mm and is centered under the co
Posted: Tue May 24, 2022 9:46 am
7. The base of an automobile jack stand forms an equilateral triangle of side length 250 mm and is centered under the collar A. Model the structure as one with a ball and socket at each joint and determine the forces in members BC, BD, and CD. Neglect any horizontal reaction components under the feet B, C, and D. 4 kN 400 mm 250 mm