A composite beam is constructed by bolting four plates to four 60 60 12-mm angles as shown. The bolts are equally spaced along the beam, and the beam supports a vertical load. As proved in mechanics of materials, the shearing forces exerted on the bolts at A and B are proportional to the first moments with respect to the centroidal x-axis of the red-shaded areas shown, respectively, in parts a and b of the figure. Knowing that the force exerted on the bolt at A is 280 N, determine the force exerted on the bolt at B.
ENGR 121 B Lab Notes for 10/19/2016 Spencer Kociba ● If/else statements ○ if() ■ Operation where if what is in () is true, it will carry out the action given right after the condition on the next line ○ elseif() ■ Only executes if 1st condition is false; will check a second condition ○ else() ■ If the “if()” and “elseif()” statements are false, follow the commands after this ○ Progression: ■ if() ■ elseif() ■ elseif() ■ …. ■ else() ○ **stops progressing as soon as a condition is satisfied ○ Nesting ■ if()