How to calculate the resultant force of two forces

1. You can separate two forces: vertical and horizontal. The horizontal direction of the decomposed force is offset and a result is obtained; You can also get a result in the vertical direction. Next, there are only two forces perpendicular to each other. You should be able to do that, right
there is a case: if one of the horizontal and vertical forces is zero, the final result is the non-zero force.

2.

If you can only draw, you can set the unit length by yourself, as long as its proportion is the same as Newton's value

you can only find the resultant force through parallelogram method

if you make parallelogram with two forces as variable length

then the resultant force is diagonal, the direction is fixed, and the value is its length

3. The resultant force is also regular:
1. One is the sum of two forces with the same direction on the same line
2. The other is the difference between two forces with opposite directions on the same line.

4.

Calculation method:

the direction of F is the direction after the combination of several forces

Force is a vector, and resultant force refers to the vector sum of multiple forces acting on the same object. The resultant force is a vector, and the addition and subtraction of vectors satisfy the parallelogram rule and triangle rule

If the two forces are not collinear, the direction of diagonal is the direction of resultant force

if the directions of the two forces are the same, then the resultant force is equal to the sum of the two forces and the direction remains unchanged

if the directions of the two forces are opposite, the resultant force is equal to the difference between the two forces, and the direction is the same as that of the larger force

If two forces are equal forces, the resultant force is zero. ∑F=0

extended data

when pulling a car on a horizontal plane forward, the pulling force used above the syncline can be divided into two components: one is to move the car forward horizontally, the other is to rece the pressure of the weight on the horizontal plane vertically. The decomposition of force is the inverse operation of the composition of force. Concept: the process of finding a component of force. The parallelogram rule is also obeyed

If a force acts on an object, its effect on the object is the same as that of other forces acting on the same object at the same time, and these forces are the components of that force

5. Let the force act on a point, and a parallelogram can be drawn with the two sides. The resultant force of the two forces is the diagonal line starting from this point.
in addition, a coordinate system is set to decompose the force in this coordinate system, and then the resultant force is calculated

6. 1. Draw the resultant force, size and direction first
2. The starting point of the resultant force is the center of the circle, and the radius is the size of F1. To make a circle, it must intersect with the resultant force F
3. The end point of the resultant force is the center of the circle, and the size of F2 is the radius. To make a circle, it must intersect with the resultant force F

the analysis is as follows:
If two circles have no intersection, there is no solution
if there is one intersection point, then F1 and F2 are unique (three forces are on the same line, including inscribed and circumscribed)
if there are two intersections, then F1F2 has two possibilities.

7. The magnitude of two common point forces is 5N and 8N respectively
the maximum is 8 + 5 = 13N
the minimum is 8-5 = 3N
the magnitude cannot be equal to a.2n

8. Do the axis of force, let each force fall on the axis, add in the same direction, subtract in the opposite direction
if there are two forces left in the end, we can use Pythagorean theorem to find the hypotenuse.

9. Normally, it's no different... Parallelogram, (rectangle)... 45 degrees... The rest should know

10. As long as these three forces can form a closed triangle, if the resultant force is x and the other force is y, then the required force range should be in the (X-Y, x + y) range. Note that X-Y has an absolute value here