Triangle of vector triangle force What's the difference between them? How to draw them Triangle of force or vector triangle in the balance of three forces in physics? Is it end-to-end

Triangle of vector triangle force What's the difference between them? How to draw them Triangle of force or vector triangle in the balance of three forces in physics? Is it end-to-end


Basically the same, if not the same, that is. The triangle of force means that the object is in a state of equilibrium under the action of three qualitative forces, and the resultant force of its qualitative force is zero. After translating the vector force, it can form a vector triangle connecting the head and the tail. But the vector triangle may not be all three vectors of force, it may also be displacement, etc., and the scope of representation is more extensive



What is a vector triangle


Vector representation is to use a line segment and an arrow to represent a physical quantity. The length of the line segment represents the magnitude of the vector quantity, and the arrow represents its direction. If there are two forces with different magnitude and direction, use an appropriate amount of triangle to find out the size of their resultant force, then connect the tail of the second force with the head of the first force, and their resultant force is the second force



Vector triangle


When an object is balanced by three forces at the same point, the vector arrows of the three forces are connected end to end to form a closed triangle, which is called "x0d". If the vector arrows of the three forces are connected to form a closed triangle, then the resultant force of the three forces must be zero, Some mathematical knowledge is often used: trigonometric function method, triangle graphic method, sine theorem and similar triangle method. This method is often used when analyzing the dynamic changes of vectors. Especially when the combined vector is not changed, the direction of one vector is not changed, and the size and direction changes of another sub vector are analyzed. In fact, the method is derived from the parallelogram method, But it is more widely used than the parallelogram method. Because the parallelogram method can not be used in the synthesis of collinear forces. Another important point is that the vector can be translated, but the premise is that its direction and the direction of the arrow can not be changed!