Torque from a Couple: Solving Forces

The moment of a couple is a key physics and engineering idea for finding torque, or rotational force. A couple is made of two equal and opposite forces that act on an object. When those forces work together, they create a twisting effect that can rotate the object.

The moment of a couple is calcu...

考虑一根连接到三维坐标系中 x 轴上 O 点耦合的管道。

两个长度为 0.12 米的扳手沿 z 轴施加 120 牛顿的相等且相反的力。扳手沿 x 轴距离 O 点 0.5 米和 0.7 米。

确定系统的 couple moment。

围绕点 O 的耦合矩确定为位置矢量和施加的力的叉积之和。

r_A 和 r_B 分别表示从 O 点到 A 点和 B 点的位置向量。

位置矢量 r_A...