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This book has been written designedly for the private student and especially for those who need to acquire a knowledge of the mechanical principles which underlie much of the work in many branches of industry and in the technical branches of the fighting forces. It is difficult in these troubled times to obtain the tuition provided by Scientific and Technical Institutions for such subjects as Mechanics. Nor is there any completely satisfactory substitute. Nevertheless the author hopes and believes that enough can be learnt from the present volume to be of very real practical use as an introduction to the subject. Like other volumes in the "Teach Yourself " series, it seeks to give such help as is possible to those- students who are anxious to acquire a knowledge of the subject but must rely, in the main, on their own studies.
Introductory
The Lever
Centre of Gravity
Resultant of Non-Parallel Forces Parallelogram of Force
Components of a Force, Resolved Parts of a Force
Triangle of Forces; Polygon of Forces; Lami's Theorem
Friction
Bodies in Motion-Velocity
Acceleration
Newton's Laws of Motion
Impulse and Momentum; Work, Energy, Power
Machines
Composition of Velocities; Relative Velocity
Projectiles
Density; Specific Gravity
Liquid Pressure
The Pressure of Gases
Answers
Tables