When measuring motion, can a moving object be a reference point?

Question:I am doing a Matter In Motion paper, and a question I have is "Can a moving object be used as a reference point?" 'explain'.
I think the answer is NO but need to be sure.
thanks!!

Answers:
Moving objects can be and frequently are used as reference points. If you are in a moving car, and not interested in the journey you are making, but in how other cars are moving relative to you, you can regard your car as 'fixed', and use it as a frame (A) of reference.

You can then create equations of motion based on the movements within that frame (A). The frame (A) will have its own equations of motion relative to any other frame (B). By combining the equations in an appropriate manner, you can find equations of motion relative to frame (B), and so on ...
I would say yes if you can determine the speed at which it is traveling and the distance of the object from your observation point. Astronomers do it all the time.
Yes, if its direction and velocity are constant.
mmmm, don't think so
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Sure. In fact, it is virtually impossible not to use a moving object as your reference. The earth is constantly moving through space. The university is constantly expanding outward. Any reference point that you select in the universe, except the exact center, is moving!

I will note, depending on the level of the class you are doing for, the teacher may try to tell you that the answer is, in fact, no. If you have talked at all about astronomy or have middle/high school level physics or physical science, I would go with my answer. If your teacher tries to argue with you, explain the movement of the earth and expansion of the universe. Your teacher might still count it wrong, but that is THE CORRECT ANSWER...
We measure all motion as it relates to us on Earth, which is moving, and fast too! It depends on how you use the point of reference. Say you are in a car on the road and you meet another car from the other direction. You both are travelling 55mph, but relative to you, the other car is going 110mph.
yes if the object in motion has constant speed
and any degradation of momentum/mass
can be extrapolated from previous testing
Yuppersz, you're correct.
A reference point has to be the object that is not moving that you started from.

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