In this discussion we will begin to study the motion of objects by taking into account the cause. Kinetics which discusses the relationship between the force as the cause of motion is called DYNAMIC MOTION.
Generally speaking style (F "Force") is a push or pull acting on the body. Experience observing motion in everyday life cause our intuitions about the motion of an object. If there is no external force if the object can move / stop on its own or it will not move at all? and if necessary force continuously in order to move objects? Maybe that's what's on our minds about the motion of objects.
Newton's laws I
"A body remains at rest or moves with constant velocity if no external forces are acting on it"
There is no external force that works, then the resultant force equal to zero. Or mathematically written as
Newton's Law I ===> ΣF = 0 for stationary objects or objects moving uniformly straight
Newton's Law I also illustrates that an object at rest will tend to maintain or state movement.
The first possibility
A glass is placed on the table. And at the bottom of the glass put a piece of paper. Paper withdrawn more slowly, the glass moved from his position. This is due to the force applied long enough, so that the glass can not maintain a state of silence.
the second possibility
When the paper is pulled quickly, the glass remains in position. This is due to the force applied in a short time (no forces acting on it). So the glass does not move at all.
The tendency of an object to maintain a state of silence called inertial / inertia.
Newton's Law so I called the law of inertia or the law of inertia.
The amount of inertia / mass inertia of the object is indicated by (a measure of inertia of an object).
Daily events related to Newton's law I
When we stand in the bus was speeding, bus braked suddenly, the passengers will be pushed forward. Similarly, when the bus suddenly accelerated (in gas), the passengers were thrown back.
ok guys i thikn is enough for today hehehe please comennt ;)
