How does a force create a moment around a point without direct contact?

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The moment of a force describes its turning effect around a specific point, calculated by multiplying the force's magnitude by the perpendicular distance from the force's line of action to that point. This concept applies to rigid bodies, such as levers and wheels, where the moment can cause rotation without directly affecting the reference point. The point of reference is crucial for calculations but does not need to be influenced by the force itself. The discussion highlights that the position of the reference point matters only in relation to the force's line of action. Overall, the principles of moments illustrate the relationship between force and rotation in physical systems.
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I just read that moment of a force about a point is the turning or twisting effect of the force about that point.

Moment of a force= magnitude of force*perpendicular distance between the line of action of force and the point


So how can force affect that point without even coming in contact with it?
 
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It doesn't.

Consider a hollow body and take a moment relative to a point within the body.
The moment makes the body turn, but the point it's relative to is unaffected.
It is just a point of reference.
 
The principle of moments only applies to rigid bodies like levers, wheels etc.
But you can calculate the actual moments about any point you like. The force needn't actually "affect" the point.
 
yes,
it doesn't matter
where the point lies but it maters only whether the point is in line of action of that force or not?
and,
it's similar case is our Earth is rotating right about it's line of action continuously so, the rotational force do exist continuously and the particles of earth(us) also experiencing thee force.
 
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