Engineering Mechanics: Statics (9th Edition)

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ISBN9781119392620/ 9781119392743/ 9781118885840/ 9781119044819
AuthorsJ. L. Meriam, L. G. Kraige, J. N. Bolton


Engineering Mechanics: Statics is a fundamental branch of engineering that deals with the study of objects at rest and the forces acting on them. The 9th edition of Engineering Mechanics: Statics offers a comprehensive guide to understanding the principles and applications of statics, providing engineers with a strong foundation to analyze and solve complex structural problems. In this blog post, we will explore the key features of this edition and discuss its significance in the field of engineering.

Chapter 1: Introduction to Statics

The first chapter of the 9th edition sets the stage by introducing the basic concepts and principles of statics. It covers topics such as forces, moments, vectors, and free-body diagrams. The chapter also emphasizes the importance of developing a systematic problem-solving approach, which is essential for tackling real-world engineering challenges. With its clear explanations and illustrative examples, this chapter ensures that students grasp the fundamental principles before diving deeper into the subject.

Chapter 2: Resultants and Equilibrium

Chapter 2 delves into the concept of resultants and equilibrium. It explores how multiple forces can be combined to produce an equivalent force known as the resultant. The chapter introduces the concept of vector addition and equilibrium conditions, explaining how forces acting on a body can be balanced to achieve a state of equilibrium. Real-world applications and practical examples are provided to help students understand the significance of these concepts in various engineering disciplines.

Chapter 3: Two-Dimensional Force Systems

This chapter focuses on analyzing two-dimensional force systems, which are prevalent in many engineering scenarios. It covers topics such as concurrent forces, nonconcurrent coplanar forces, and the resolution and composition of forces. Through numerous examples and problem-solving techniques, students gain the necessary skills to determine the equilibrium conditions and calculate unknown forces in complex systems.

Chapter 4: Three-Dimensional Force Systems

Chapter 4 expands the principles of statics into three-dimensional force systems. It introduces concepts like the moment of a force, the moment vector, and the cross product of two vectors. By understanding these concepts, students can analyze and solve problems involving three-dimensional systems, including those found in structures and machines. The chapter provides practical applications and exercises to enhance the understanding of these complex concepts.

Chapter 5: Trusses and Frames

This chapter focuses on trusses and frames, which are widely used in engineering structures. It explains the methods of analyzing these structures using the method of joints and the method of sections. The chapter also covers the determination of the internal forces in truss members and the stability of structures. With its emphasis on practical examples and real-world applications, this chapter prepares students to tackle design and analysis challenges encountered in civil, mechanical, and aerospace engineering.

Chapter 6: Internal Forces

Chapter 6 explores the internal forces within structural members caused by external loads. It introduces concepts such as axial forces, shear forces, and bending moments. Through the study of internal forces, students gain insight into the behavior and design of various structural components, such as beams and columns. The chapter provides step-by-step procedures for determining internal forces and includes extensive examples and diagrams to aid understanding.


The 9th edition of Engineering Mechanics: Statics serves as an invaluable resource for engineering students and professionals alike. Its comprehensive coverage of statics principles, clear explanations, and practical examples make it an essential companion for those seeking a solid foundation in the field. By mastering the concepts presented in this edition, engineers will be equipped with the necessary tools to analyze and design structures with confidence, ensuring their safety and efficiency in the real world.

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Written by Jordan Farrell

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