If you find an error, compare with the 6th edition solucionario (widely available) – many problems are similar, and the 6th is often more carefully proofread.
International Center for Development of Science and Technology Key Features & Educational Value Methodological Rigor solucionario meriam estatica 7 edicion
Solving problems involving dry friction on planes, wedges, and screws. Virtual Work: If you find an error, compare with the