Define a location of a non-point object

  • Thread starter Quarlep
  • Start date
In summary, the conversation discusses how to accurately describe the position of an extended object, such as a segment that is 1 meter long. It is mentioned that a single point coordinate may not be sufficient, and at least two points may be needed to accurately represent the segment. The importance of assigning coordinates depends on the purpose of the application, such as calculating orbits or collision avoidance. An example of this is given with an airplane in the sky versus an airplane on the ground.
  • #1
Quarlep
257
4
Lets suppose we have a object which its a not a point.Lets call it a segment which is 1 meter.If we want to locate this object in space we need to use coordinates but coordinate is a point.So I think point cannot describe a segment than how I can show it.
Thanks
 
Physics news on Phys.org
  • #2
You need more numbers to describe the position of an extended object. (5, not 3)
 
  • #3
You need at least 2 points to think of a segment.
 
  • #4
It depends on your purpose of assigning coordinates.

For some applications, perhaps calculating orbits, the coordinate of the center of gravity is most important. In others applications, such as collision avoidance, the coordinates of extremities is most important.

Think of an airplane flying in the sky versus an airplane navigating on the ground at a crowded airport.
 
  • #5
ok thanks
 

FAQ: Define a location of a non-point object

What is a non-point object?

A non-point object is a physical entity that does not have a specific or exact location. This can include objects that are too large to be considered a point, such as a planet, or objects that are constantly moving or changing shape, such as a cloud or a flame.

How do you define the location of a non-point object?

The location of a non-point object is typically described using a reference point or a range of possible points. For example, the location of a cloud can be described as "above the city" or the location of a planet can be described as "between Earth and Mars".

Can a non-point object have a specific location?

No, a non-point object cannot have a specific location because it does not have a defined shape or size. However, its location can be described using a reference point or a range of possible points.

How does the location of a non-point object affect its properties?

The location of a non-point object can affect its properties in various ways. For example, the location of a cloud can determine the amount of sunlight it receives, which can affect its size and shape. The location of a planet in relation to other objects can also affect its gravitational pull and influence its orbit.

What are some examples of non-point objects?

Some examples of non-point objects include planets, stars, clouds, flames, smoke, and air particles. These objects do not have a specific location and their position can vary over time.

Similar threads

I How Does the Angle at P1 Change Over Time Until the Object Falls?
Replies
2
Views
2K
I What is the actual definition of the position of an object?
Replies
31
Views
1K
New coordinate system and point location in new system
Replies
3
Views
961
I Geometry/Trig Problem -- Well Constrained but Difficult
Replies
29
Views
2K
I Is this proof regarding massless strings correct?
Replies
19
Views
13K
I Understand 4-Vectors & Spacetime: Hartle Gravity Chapter 5
Replies
4
Views
2K
I What can we scientifically measure directly?
Replies
27
Views
3K
I Metric defined with a non-coordinate basis
Replies
28
Views
3K
I Possible to estimate the location of a measurement point?
Replies
22
Views
3K
I How many meter sticks are there in this length contraction reasoning?
Replies
12
Views
1K

Hot Threads

Recent Insights

Back
Top