(Solved): 2. A 12mm400mm steel plate has staggered holes arranged as shown. Bolt Dia. 25mm a. Calcula ...

2. A $12\mathrm{mm}\times 400\mathrm{mm}$ steel plate has staggered holes arranged as shown. Bolt Dia. $25\mathrm{mm}$ a. Calculate the distance " $b$ " so that the net area in path 1-2-3-4 is equal to the net area of path 1-2-4? b. Using the computed value of " $b$ ", solve for the critical net area. c. Calculate the ultimate safe tensile force ${\mathrm{Pu}}_{\mathrm{u}}$ that the steel plate could carry?