physics: the style

DEFINITIONS STYLE
Style is a push or pull. The style can lead to changes - changes as follows:
1) stationary objects to be moving
2) moving objects become stationary
3) the shape and size of the object changes
4) direction of motion of change
Kind of - kind of Style


Based on the cause, the force divided
as follows:
(1) style machines, which is a style that originated from the engine
(2) the magnetic force, the force from the magnets
(3) the gravitational force caused by the earth's attraction
(4) the spring force, the force generated by the spring
(5) the electrical force, the force generated by the electric charge
By its nature, style grouped into:
(1) touch style, the style of which arise because the point of the work force, direct contact with the object.
(2) do not touch style, the style that arose although the point of the work force is not in contact with the object.
Drawing Style
Style is a vector quantity (has value and direction). Therefore, the style can be described using a vector diagram.



COMBINED (resultant) force
Resultant force (R), which is the sum of several forces acting in line. So mathematically written:
To simplify the calculation, the force upward trending right or marked positive (+), and the force directed to the left and bottom are given a negative sign (-)



Styles - Unidirectional
Consider the following picture:
Then the value R = F1 + F2 = (2 + 6) N = 8 N
Styles - The Opposite Direction
Consider the following picture:



The value R = F1 + F2 = (-4 + 16) N = 12 N
The formed styles 90o angle (elbow to elbow)
Consider the following:
F1 = 4 N Fr




F2 = 3 N
Fr = √ F2 F1 2 + 2 = √ 42 + 32 = √ 25 = 5 N
The direction toward the 450, in the middle of the two forces acting on the
A Balanced Position
Two forces said to be balanced when the two forces were equal, opposite, and located one line. Resultant style - a style that balanced R = 0.
If an object is in a state of balance (R = 0), then the object does not change the motion so:
(1) object at rest will remain silent
(2) object would still have suffered GLB GLB.