AST 111 Lecture Notes - Lecture 6: Isaac Newton
Document Summary
Ast 111: lect 6: gravitation and the waltz of the planets (cont. ) Kepler"s laws can apply to any pair of orbiting objects. Galileo didn"t invent the telescope, but he perfected the instrument and was the first person to use it for astronomical observing. Father of modern astronomy and modern experimental physics. Developed a set of laws that describes the motion of all objects, not just planets. A body at remains at rest, or moves in a straight line at constant speed, unless acted upon by an outside force. The acceleration of an object (of mass m) is proportional to the net outside fore. Whenever one body exerts a force on a second body, the second body exerts. 2 bodies attract eachoter with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them, or f=gmm/r2.
