Answer #1:
A reference point should be stationary from the point of view of the observer.
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Answer #2:
As soon as you said a "moving car", you showed us that you already have a
reference point, and that the car is moving relative to it. If you want to use
the car as a reference point, fine and dandy. Then the car is not moving.
The pavement on the road, the trees, and the people on the curb may or
may not be moving, but the car isn't. You can't say that the car is moving
AND also say that it's your reference point.
Everything in all of Creation is moving relative to other things. There's no such
thing as really moving or really stationary.
You move in relation to something, for instance, if you take the planet Earth as a reference, then we're not moving, even if you walk around. However, we're moving in relation to the sun because we're on a planet that is. If you drive a car, you're not moving in relation to the seat you're sitting on, but you are moving in relation to sign posts that you leave behind.
An object is moving if its position is changing with respect to a reference point over time. This can be observed by visually tracking the object's motion or using instruments to measure its displacement.
The act of determining the size, amount, or degree of something using a specific unit of measurement or reference point.
Deciding if an object is moving isn't as easy as it sounds. We can only discern relative motion and we have to use reference points. (A reference point is an object that is not moving that you compare to the other object.) An object is in motion when it's distance from the reference point is changing.For example, you could say that you and this computer are not moving. Other than your eyes blinking, chest pumping up and down, and you clicking on the mouse, you and this computer are not in motion. Since the distance between you and the computer is not changing, you can conclude that neither you or the computer are moving.
The equator is the zero reference line for latitude, and the Prime Meridian is the one for longitude.
A moving object can not be used a a reference point because it has no fixed position.
No, moving objects cannot be a reference point because a reference point is typically a fixed point used to determine the position or motion of other objects. Using a moving object as a reference point would make it difficult to accurately measure or describe the position or motion of other objects relative to it.
An object is moving in relation to a reference point if its position changes with respect to that point over time. By observing the object's changing position relative to the reference point, we can determine whether it is in motion.
You move in relation to something, for instance, if you take the planet Earth as a reference, then we're not moving, even if you walk around. However, we're moving in relation to the sun because we're on a planet that is. If you drive a car, you're not moving in relation to the seat you're sitting on, but you are moving in relation to sign posts that you leave behind.
What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.What pushes us back is a change in velocity (i.e., an acceleration), not the velocity itself. You might as well say that the train is stationary, and that planet Earth is moving under the train. In outer space, there is no fixed reference point; and it doesn't make sense to speak of the "real" velocity. A velocity must always be indicated with relationship to some reference point. Using the Earth as a reference point is convenient, but it isn't the only option.
Living organisms such as plants or animals can also be used as reference points. For example, using a tree or a specific animal as a reference point can help provide perspective or direction.
To support you in specifying how the reference point is placed and how the object is moved away from the reference point.
Because there's no such thing as "real" motion. There's only motion compared to something else. You can't read a book if the book is moving. But you can read just fine while you're traveling in an airliner. Compared to your lap and your eyes, the book is not moving. Compared to the librarian that you're flying over, you and the book are both moving at 400 miles an hour. Well, which is it ? Is the book motionless or is it moving at 400 miles an hour ? The answer is: Yes. It's both, depending on the reference point.
An object's position change is described in terms of a reference point by measuring the distance and direction the object has moved from that reference point. This can be done using coordinates, vectors, or distance measurements relative to the reference point.
Motion or movement can be described using a reference point and direction. The reference point provides a starting point from which the motion is measured, while the direction indicates the path or trajectory of the motion. This system is commonly used in physics and navigation to track the position and movement of objects.
An object is moving if its position is changing with respect to a reference point over time. This can be observed by visually tracking the object's motion or using instruments to measure its displacement.
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