If you remain stuck after two honest attempts, then open the manual to the first step only . Did you choose the correct coordinate system? Did you identify all forces? Re-create their FBD, then close the book and finish the problem yourself.
Before diving into the solution manual, we must understand the parent text. Authored by R.C. Hibbeler, this textbook is structured into 11 core chapters plus appendices, focusing exclusively on objects at rest or moving with constant velocity. If you remain stuck after two honest attempts,
Applying the equations of equilibrium (