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To identify and objects location you need three pieces of information. These are a reference point, a distance from the reference point, and a direction from the reference point.
To identify and objects location you need three pieces of information. These are a reference point, a distance from the reference point, and a direction from the reference point.
we need a fixed reference point to describe the position of a body
Yes, that is one meaning of "reference point", although the reference point need not be an object, but may simply be a location.
Motion is relative. There must be something to compare it to.
To identify and objects location you need three pieces of information. These are a reference point, a distance from the reference point, and a direction from the reference point.
To identify and objects location you need three pieces of information. These are a reference point, a distance from the reference point, and a direction from the reference point.
we need a fixed reference point to describe the position of a body
You need to agree on a point that everybody knows, and then provide a minimum of three numbers to describe the object's location compared to the known point.
You need to agree on a point that everybody knows, and then provide a minimum of three numbers to describe the object's location compared to the known point.
Yes, that is one meaning of "reference point", although the reference point need not be an object, but may simply be a location.
it provides a universal reference point for people that need to communicate, but may not necessarily speak the same languages
Motion is relative. There must be something to compare it to.
A reference point is part of the definition of movement or displacement. The difference, over time, of your distance or orientation to a given reference point or points defines movement.
A reference point is part of the definition of movement or displacement. The difference, over time, of your distance or orientation to a given reference point or points defines movement.
When you need to tell somebody else the location of a point, and you can only text it, you can't draw him a picture. That's when you describe the location in terms of (x, y), latitude / longitude, or "the corner of 'A' Avenue and 'B' Street".
You need to know point a and point b and where they are located.