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第2章

力のベクトル

スカラーとベクトル
スカラーとベクトル
In mechanics, commonly used terms like force, speed, velocity, and work can be classified as either scalar or vector quantities. A scalar is a physical ...
ベクトル演算
ベクトル演算
Vectors are physical quantities that have both magnitude and direction. The vector operations include addition, subtraction, and scalar multiplication. A ...
力の紹介
力の紹介
Consider water flowing from a nozzle to a turbine vane. As the water hits the turbine vane, it exerts a force that causes it to move along the flow of ...
力の分類
力の分類
Forces play a crucial role in the study of physics and engineering. They are essential in describing the motion, behavior, and equilibrium of objects in ...
力のベクトル加算
力のベクトル加算
When understanding the effects of multiple forces acting on an object, vector addition is a crucial concept to grasp. This mathematical concept can be ...
2次元力システム
2次元力システム
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved ...
2次元力システム:問題解決
2次元力システム:問題解決
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector ...
スカラー表記
スカラー表記
Scalar notation is a useful method for simplifying calculations involving vectors. When vectors are added or subtracted, their components can be added or ...
デカルトベクトル表記
デカルトベクトル表記
Cartesian vector notation is a valuable tool in mechanical engineering for representing vectors in three-dimensional space, performing vector operations ...
ベクトルの方向余弦
ベクトルの方向余弦
Direction cosines, which help describe the orientation of a vector with respect to the coordinate axes, are an essential concept in the field of vector ...
3次元力システム
3次元力システム
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z ...
3次元力システム:問題解決
3次元力システム:問題解決
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is ...
位置ベクトル
位置ベクトル
A position vector is a fundamental concept in mathematics that helps determine the position of one point with respect to another point in space. It is a ...
線に沿ってベクトルを強制する
線に沿ってベクトルを強制する
Quite often in three-dimensional statics problems, the direction of a force is specified by two points through which its line of action passes. Consider a ...
ドット積
ドット積
The dot product is an essential concept in mathematics and physics. In engineering, the dot product of any two vectors is the product of the magnitudes of ...
ドット積:問題解決
ドット積:問題解決
The dot product is a powerful tool in problem-solving involving vectors, given that the dot product of two vectors is the product of their magnitudes and ...
外積
外積
The cross product is a fundamental concept in vector algebra that is a vector operation on two different vectors to obtain a third vector. Unlike the ...
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