The seventh edition of this classic text continues to provide the same high quality material seen in previous editions. The text has been extensively rewritten with updated prose for content clarity, superb new problems in new application areas, outstanding instruction on drawing free body diagrams, and new electronic supplements to assist readers.
Furthermore, this edition offers more Web-based problem solving to practice solving problems, with immediate feedback; computational mechanics booklets offer flexibility in introducing Matlab, MathCAD, and/or Maple into your mechanics classroom; electronic figures from the text to enhance lectures by pulling material from the text into Powerpoint or other lecture formats; 100+ additional electronic transparencies offer problem statements and fully worked solutions for use in lecture or as outside study tools.

Contents:
CHAPTER 1
INTRODUCTION TO STATICS 3
1/1 Mechanics 3
1/2 Basic Concepts 4
1/3 Scalars and Vectors 4
1/4 Newton’s Laws 7
1/5 Units 8
1/6 Law of Gravitation 12
1/7 Accuracy, Limits, and Approximations 13
1/8 Problem Solving in Statics 14
1/9 Chapter Review 18
CHAPTER 2
FORCE SYSTEMS 23
2/1 Introduction 23
2/2 Force 23
SECTION A TWO-DIMENSIONAL FORCE SYSTEMS 26
2/3 Rectangular Components 26
2/4 Moment 38
2/5 Couple 50
2/6 Resultants 58
SECTION B THREE-DIMENSIONAL FORCE SYSTEMS 66
2/7 Rectangular Components 66
2/8 Moment and Couple 74
2/9 Resultants 88
2/10 Chapter Review 99
CHAPTER 3
EQUILIBRIUM 109
3/1 Introduction 109
SECTION A EQUILIBRIUM IN TWO DIMENSIONS 110
3/2 System Isolation and the Free-Body Diagram 110
3/3 Equilibrium Conditions 121
SECTION B EQUILIBRIUM IN THREE DIMENSIONS 145
3/4 Equilibrium Conditions 145
3/5 Chapter Review 163
CHAPTER 4
STRUCTURES 173
4/1 Introduction 173
4/2 Plane Trusses 175
4/3 Method of Joints 176
4/4 Method of Sections 188
4/5 Space Trusses 197
4/6 Frames and Machines 204
4/7 Chapter Review 224
CHAPTER 5
DISTRIBUTED FORCES 233
5/1 Introduction 233
SECTION A CENTERS OF MASS AND CENTROIDS 235
5/2 Center of Mass 235
5/3 Centroids of Lines, Areas, and Volumes 238
5/4 Composite Bodies and Figures; Approximations 254
5/5 Theorems of Pappus 264
SECTION B SPECIAL TOPICS 272
5/6 Beams—External Effects 272
5/7 Beams—Internal Effects 279
5/8 Flexible Cables 291
5/9 Fluid Statics 306
5/10 Chapter Review 325
CHAPTER 6
FRICTION 335
6/1 Introduction 335
SECTION A FRICTIONAL PHENOMENA 336
6/2 Types of Friction 336
6/3 Dry Friction 337
SECTION B APPLICATIONS OF FRICTION IN MACHINES 357
6/4 Wedges 357
6/5 Screws 358
6/6 Journal Bearings 368
6/7 Thrust Bearings; Disk Friction 369
6/8 Flexible Belts 377
6/9 Rolling Resistance 378
6/10 Chapter Review 387
CHAPTER 7
VIRTUAL WORK 397
7/1 Introduction 397
7/2 Work 397
7/3 Equilibrium 401
7/4 Potential Energy and Stability 417
7/5 Chapter Review 433
APPENDICES
APPENDIX A AREA MOMENTS OF INERTIA 441
A/1 Introduction 441
A/2 Definitions 442
A/3 Composite Areas 456
A/4 Products of Inertia and Rotation of Axes 464
APPENDIX B MASS MOMENTS OF INERTIA 477
APPENDIX C SELECTED TOPICS OF MATHEMATICS 479
C/1 Introduction 479
C/2 Plane Geometry 479
C/3 Solid Geometry 480
C/4 Algebra 480
C/5 Analytic Geometry 481
C/6 Trigonometry 481
C/7 Vector Operations 482
C/8 Series 485
C/9 Derivatives 485
C/10 Integrals 486
C/11 Newton’s Method for Solving Intractable Equations 489
C/12 Selected Techniques for Numerical Integration 491
APPENDIX D USEFUL TABLES 495
Table D/1 Physical Properties 495
Table D/2 Solar System Constants 496
Table D/3 Properties of Plane Figures 497
Table D/4 Properties of Homogeneous Solids 499
INDEX 503
PROBLEM ANSWERS 507