The kinematics and the concept of a point particle


The kinematics and the concept of a point particle

La cinematica e il concetto di punto materiale

Kinematics in Greek kinema-atos It means movement. It describes the motion of objects without concerning the causes which determine.

The bodies of which studies the bikes are varied: a truck that moves along a road, a ship that moves on ’ water, an electron revolving around the nucleus of an atom or the earth revolves around the Sun. You will then need to write different equations of motion for a missile or a ball? To overcome this first question you have to introduce the concept of point particle (motion of bodies that can be localized by specifying the position of a geometrical point with mass).
It's called point particle a geometrical point with mass.
It is therefore appropriate to treat a body as point particle when its size is negligible compared to the phenomenon in the studio and do not consider the rotation.




Previous Entries The significant digits and its rules Next Entries The concept of time

Leave a Reply

four × 1 =