If there are two forces that have captured the same point a different direction with the direction of the force makes an angle α the resultant number can be calculated by the following equation:
Figure 2.23 Two styles with different directions
For α = 90 ° then Cos α = 0 or apply the formula of Pythagoras, namely:
Description :
o P and Q = component force
o α = angle of the wedge between the two styles
o R = Resultant
Compiling Style Located In The Flat Field
If there are two forces that have a different fishing spot and is located on a flat, then to determine the capture point style can be implemented in two ways:
o by way of painting.
o by way of analysis / count
Example: Two forces each has a capture point at point A and point B with the distance AB = 60 cm, a large force P = 8 N and the direction of his style left under an angle of 120 ° to the horizontal line, Style Q = 2 √3 N with direction of the force perpendicular to the bottom, see the following picture:
Figure 2.26 Two different styles to capture titk
Of both style over specified:
– The magnitude of the resultant;
– Directions resultant;
– Point the resultant catch
Completion See the following picture:
To determine the point of capture, the direction and magnitude of the resultant force can be done by way of painting is as follows:
– Copy the above questions with a scale of 2 N # 1cm style and length scales of 1: 10.
– Extend the line of force P and Q upwards to meet at a point C.
– Move the force P and Q to point C.
– Create parallelogram through force P and Q are.
– Create diagonally through point C to obtain the magnitude of the resultant R.
– Extend the working line style R to cut the line AB at point D, and point D is the point of the resultant catch.
– Move resultant from point C to point D capture. Then obtained: the point of capture, the direction and magnitude of the resultant force as shown in the following figure.
Figure 2.27 Moving style
2:28 Figure Painting style