describe newton ''Impetus Theory''?

Answer 1

Theory of impetus:

However, in the 14th century Jean Buridan rejected the notion that this motion-generating property, which he named impetus, dissipated spontaneously. Instead, Buridan's position was that a moving object would be arrested by the forces of air resistance and gravity which might oppose its impetus[3]. Buridan also maintained that impetus increased with speed; thus, his initial idea of impetus was similar in many ways to the modern concept of momentum. Despite the obvious similarities to more modern ideas of inertia, Buridan saw his theory as only a modification to Aristotle's basic philosophy, maintaining many other peripatetic views, including the belief that there was still a fundamental difference between an object in motion and an object at rest. Buridan also maintained that impetus could be not only linear, but also circular in nature, causing objects (such as celestial bodies) to move in a circle.

Shortly before Galileo's theory of inertia, Giovanni Benedetti modified the growing theory of impetus to involve linear motion alone:

“…[Any] portion of corporeal matter which moves by itself when an impetus has been impressed on it by any external motive force has a natural tendency to move on a rectilinear, not a curved, path.”[4]
Benedetti cites the motion of a rock in a sling as an example of the inherent linear motion of objects, forced into circular motion.

for more pl. visit:
http://en.wikipedia.org/wiki/Inertia#Theory_of_impetus

Answer 2

Scientists do not "trust" stuff; they study info skeptically and form conclusions then attempt to refute them. Newton's gravity replaced Aristotle's (even as conserving the word "gravity"), then Einstein's replaced Newton's. Physicists have no doubt that Einstein's theories would get replaced in basic terms as each and every theory in technology is replaced. certainly, there is an try in progression at present with the capacity to sink Einstein's wide-spread Relativity theory. Google on the "Gravity B try."

Answer 3

check this page out everything abot newton is there
http://en.wikipedia.org/wiki/Isaac_Newton