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by Greg Goebel
This document is a short introduction to basic concepts and definitions
in classical physics. It assumes no mathematics beyond elementary
algebra and geometry. Elementary electricity is not discussed in
detail, as that will eventually be the subject of a separate document.
The most fundamental concepts in physics were derived by the great
English scientist Isaac Newton in the 17th century, in the form of
what are now known as Newton's three laws of motion. These three
simple principles underlie all modern physics. This chapter provides
an introduction to these laws.
The previous chapter focused mostly on motion in a straight line.
The same principles apply to rotational motion, but end up being
reinterpreted in some unusual ways. This chapter provides a short
study of the physics of rotational motion.
The most elegant and simple way to observe the action of gravity is to
show how it defines the movements of objects in space. In fact, it was
studies of the orbits of the planets that led Isaac Newton to devise
his formula for gravity in the first place. This chapter gives a short
introduction to "orbital mechanics".
From Vectorsite.net.
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