Positioning vector and sliding vector What is a positioning vector? What is a sliding vector? Why is the force acting on an object a positioning vector? But the force acting on a rigid body a sliding vector?
The positioning vector means that the effect of the vector will not change with the starting point, just need to determine the direction (position) and size to determine the effect of a force
The space couple moment vector is generation a quantity B sliding vector C positioning vector D free vector
The direction of the moment vector of the couple is determined according to the right-hand helix rule, and the moment vector of the couple is a free vector, because once the direction and magnitude of the moment vector of the couple are determined, it can be translated to a point of action in the space of the force system
The moment of force to axis is? Positioning vector, sliding vector, free vector and algebraic quantity
Notice that it's not the moment of the force to the point
The moment of a force on an axis is a scalar and an algebraic quantity