Ignore diagram B

Examine the diagrams below. Does the situation in Diagram B look familiar? A) B F O F1 F2 W Let's find out. Solve for A first (It's easy): 1) Write the net force equation assuming w = 15N and solve for F (Just like in class). 45 = F F - 15N = 0 F = 15N 2) What is F if w is changed to 30N? F - 30 N = 0 F = 30N 3) So how are F and w related in diagram A