What is the meaning of the perpendicular distance of the line of action of the force from the axis of rotation?

Torque
Torque = Force applied x lever arm The lever arm is defined as the perpendicular distance from the axis of rotation to the line of action of the force.

Why is perpendicular distance for torque?

A torque is also a vector quantity and produces a rotation in the same way that a force produces a translation. In Example 1, the force (weight) is applied perpendicular to the arm. In this case, the perpendicular distance is the length of the bar and the torque is equal to the product of the length and the force.

How does the perpendicular distance affect the moment of an object?

Moment. The turning effect of a force is known as the moment. It is the product of the force multiplied by the perpendicular distance from the line of action of the force to the pivot or point where the object will turn.

What is perpendicular distance in physics?

From Wikipedia, the free encyclopedia. In geometry, the perpendicular distance between two objects is the distance from one to the other, measured along a line that is perpendicular to one or both.

When force is perpendicular with the distance between fulcrum and the line of action of force?

Moment of Force The moment of the force is equal to the product of the magnitude of the force and the perpendicular distance of the line of action of the force from the axis of rotation or fulcrum. The SI unit of a moment is Nm but Ncm is also in use.

What does the moment of the force measure *?

The moment of the force measures the tendency of the rotation of the body along any axis, whether it be the centroid axis of the body, or any of the outside axis. The couple moment is produced by two forces, not by a single force. The total work done is the dot product of force and distance not the cross.

Why do we measure perpendicular distance?

And it is intuitive because the distance between a line and a point is usually measured by the perpendicular distance. Why not another way? Because to make it work (to let principle of moment hold true), another definition will be more complicated (like including a certain specific angle).

Why is moment perpendicular?

A moment is due to a force not having an equal and opposite force directly along it’s line of action. Imagine two people pushing on a door at the doorknob from opposite sides. The moment arm or lever arm is the perpendicular distance between the line of action of the force and the center of moments.

Why does distance affect moment?

To achieve a change in angular velocity using a tangential force F, we need to travel a greater distance when we are farther away from the center. Or in other words, force F only changes linear velocity; achieving a change in angular velocity requires more the farther out we are.

What is the perpendicular distance from the point to the line?

Key Points The perpendicular distance is the shortest distance between a point and a line. We can find the distance between two parallel lines by finding the perpendicular distance between any point on one line and the other line.