Excerpt from Elements of Dynamic, Vol. 1: An Introduction to the Study of Motion and Rest in Solid and Fluid Bodies; Kinematic
Just as Geometry teaches us about the sizes and shapes and distances of bodies, and about the relations which hold good between them, so Dynamic teaches us about the changes which take place in those distances, sizes, and shapes (which changes are called motions), the relations which hold good between different motions, and the circumstances under which motions take place.
Motions are generally very complicated. To fix the ideas, consider the case of a man sitting in one corner of a railway carriage, who gets up and moves to the opposite corner. He has gone from one place to another; he has turned round; he has continually changed in shape, and many of his muscles have changed in size during the process.
To avoid this complication we deal with the simplest motions first, and gradually go on to consider the more complex ones. In the first place we postpone the con sideration of changes in size and shape by treating only of those motions in which there are no such changes. A body which does not change its size or shape during the time considered is called a rigid body.
The motion of rigid bodies is of two kinds; change of place, or translation, and change of direction or aspect, which is called rotation. In a motion of pure translation, every straight line in the body remains parallel to its original position; for if it did not, it would turn round.
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Seller: Forgotten Books, London, United Kingdom
Paperback. Condition: New. Print on Demand. This book introduces the basics of dynamics, the study of the changes in motion of physical bodies. The author begins by explaining the concept of a step, a fundamental idea in dynamics that describes the change in position of a body between the beginning and end of a time interval. The author then explores the composition of steps, showing how to combine multiple steps to find the overall motion of a body, and describes how to resolve and describe steps in three dimensions using vectors. The author goes on to examine different types of motion, including uniform motion, uniform rectilinear motion, uniform circular motion, harmonic motion, and compound harmonic motion. The book also discusses the concept of projection, a technique used to represent a three-dimensional figure on a two-dimensional surface. Throughout the book, the author provides numerous examples and exercises to help readers understand the concepts and apply them to real-world situations. This book is ideal for students of physics and engineering who are interested in gaining a foundational understanding of dynamics. It is clear, concise, and well organized, with a wealth of examples and exercises to aid in comprehension. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781333013462_0
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Seller: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781333013462
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781333013462