Newton's laws of motion[2]
Law of inertia (the first law)
Laws that show the relation between force and the motion are Newton's laws of motion.
This consists of three laws. (See below)
| First Law | If force doesn't act, the object continues a state as it is. |
| Second Law | If force acts on the object, the acceleration proportional to mass is caused. |
| Third law | When force acts on the object, the object is pushed back by the force of the same size. |
Here, the first law of motion to explain.
The object is "not participate unless the force, continue intact," with nature.
This is a law of inertia.
The moving object keeps moving as long as force doesn't act.
The stopping object remains resting as long as force doesn't act.
The meteorite that moves space is this image.
It doesn't accelerates and decelerate, and the meteorite doesn't curve if gravitation doesn't influence, and it doesn't collide with other heavenly bodies.
It keeps flying with a speed as it is kept.
However, the environment that force doesn't join on the earth at all cannot be actually prepared.
However, inertia can be imaged from the experience and knowledge.
For instance, there is a game of curling.
It is an item that slides the object on the surface of smooth ice, and competes for the distance until the very thing body stops.
Flat surface of ice is less friction.
The sliding object receives friction and the air resistance. These of force to receive are little yet.
Therefore, it is possible to keep slipping in the object by 10m or more in curling.
This doesn't become it so on the surface of asphalt and the floor.
Well, let's image the case without the frictional force and the air resistance at all.
The object keeps moving because there is not working that starts stopping the movement of the object with a speed as it is maintained.