Solve the below problem:
Q: A grade beam AB supports three concentrated loads and rests on soil and the top of a large rock. The soil exerts an upward distributed load, and the rock exerts a concentrated load ad RR as shown. Knowing that P = 1 kip and wB = 1/2wA determine the values of wA and RR corresponding to equilibrium.
![2255_Beam.jpg](https://secure.tutorsglobe.com/CMSImages/2255_Beam.jpg)