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This book covers the topics that are absolutely fundamental to all areas of physics: physical quantities, units of measurement (Système International, SI), vectors and vector addition. Motion is a really good context for consolidating those fundamental concepts. Motion quantities (distance, speed, displacement, velocity and acceleration) are defined and explained. Graphs of motion introduce graphical analysis. Projectile motion introduces motion in two dimensions. The link between acceleration and force is explained leading eventually to an introduction to more complex types of motion involving drag and terminal velocity.
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