PHYS114 Lecture Notes - Lecture 4: Heliocentrism, Density, Net Force
Document Summary
Galileo"s disco(cid:448)eries: relativity, the apparent speed depends on the motion of the observer; motion is always relative to something. Apparent motion is always only a difference in motion between the observer and their environment. 2)/2a: d = v0t + at2, made for objects going in a straight line; as long as it is in a straight line, these equations will work. Isaac newton: published the principia in 1687 (in latin) - all the fundamental principles of mechanics. Inertia: force, an impressed force is an action exerted upon a body, in order to change its state, either of rest, o(cid:396) of u(cid:374)ifo(cid:396)(cid:373) (cid:373)otio(cid:374) i(cid:374) a st(cid:396)aight li(cid:374)e. (cid:863) Force, which is the only way for an object to change its motion. Philosophical implications: mechanics = theoretical determinism (predictability of the future, quantum mechanics - reason why the world is not determined - outcomes are probabilistic, not.
