Problem 338 | Equilibrium of Parallel Force System

Problem 338
The two 12-ft beams shown in Fig. 3-16 are to be moved horizontally with respect to each other and load P shifted to a new position on CD so that all three reactions are equal. How far apart will R2 and R3 then be? How far will P be from D?
 

338-nagpatungay-napud.gif

 

Solution 338