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In space there are two people of equal mass passing each other one of them is stationary and one is moving at a constant speed. There are no points of reference How do you work out who is moving?
Harrybee89
There is no absolute answer to "Who is moving ?". Motion is always relative to something.
With Mr. 'A' and Mr. 'B' floating past each other in space ... first of all, for this discussion
it doesn't make a bit of difference what their masses are. In fact, they don't even both
have to be people. Maybe one of them is a space station, or even a planet, and the other
one is an astronaut who just happens to be sailing by.
Before you can even talk about their motion, you have to set up the rules, and make it
clear what reference for motion you're using. If the reference is you, then OK. You watch
both of them and describe how you see each one moving. Maybe one is moving toward you
at a constant speed, maybe the other one is moving away from you in a big curve, maybe
one of them is hardly moving at all. Whatever you see, that's the motion ... referred to you.
Now get on the radio and ask each of them what he sees. Mr. 'A' will tell you that
he's just hanging there motionless, and Mr. 'B' is sailing past him. Then, just as you
might suspect, Mr. 'B' will get on the horn and tell you that he's just hanging there
in space and Mr. 'A' is sailing past him. They're both right.
Have you ever watched video of an astronaut on a "space walk" outside the Space
Shuttle ? He's just hanging there, with his feet a few inches away from the Shuttle's
body. There's a rope between him and the Shuttle, but it's limp. As far as he's concerned,
he's hanging there, motionless, just off the skin of the Shuttle, and when the rest of
the crew inside look out the window, they agree. They see him just hanging there
motionless. Neither the floating astronaut nor the crew inside see anything moving.
Everything is almost perfectly still.
But we know ... and they certainly do too ... that the Shuttle and the spacewalking
astronaut are both in orbit around the earth, moving at something like 18,000 miles
per hour referred to anybody on the earth.
There's no such thing as "real" motion. It always depends on who is watching it
and measuring it.
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∙ 13y ago
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What is stationary position?
Stationary mean "not moving" so it must mean the the position is not moving or stay the same place.
What does a linear line on a distance vs time graph indicate?
It indicates that the obect is moving, in a radial direct (towards or away from the point of reference) at a constant speed. That speed can be 0.
What would the acceleration of a turtle that is moving with a constant velocity of 0.25 miles per second to the right?
The acceleration would be zero because the turtle is moving at a constant speed
How do you use a word constant in a sentence?
I wonder what is the constant speed of this moving car
What does constant velocity mean?
It means moving at a constant speed ... not speeding up or slowing down ... and in a straight line.
What you compare something to in order to determine if an object is moving or stationary?
You can compare the object's position relative to a reference point or a fixed landmark to determine if it is moving or stationary. If the object is changing its position relative to the reference point over time, then it is moving. If its position remains constant with respect to the reference point, then it is stationary.
What is the motion of the train on a moving track?
The motion of a train on a moving track depends on the reference frame you choose. In the train's frame of reference, it may appear stationary or moving at a constant speed. However, in an external, stationary frame of reference, the train would appear to be moving at a different velocity that combines the train's speed with the speed of the track.
What is the word for not moving or moving at a constant speed in the same direction?
The word is "stationary" for not moving, and "constant velocity" for moving at a constant speed in the same direction.
When an object is seen moving in relation to a stationary object is the stationary object is called the frame of reference or reference point?
It can be.
Suppose you are sitting in a car at a red light when a car moving toward the north begins to pass you. if you use the passing car as a reference point the direction in whichyou appear to be moving is?
If you use the passing car as a reference point, you would appear to be moving south. This is because your perspective changes as the passing car moves north, making it seem like you are moving in the opposite direction, even though you are stationary.
When an object is seen moving in relation to a stationary object the stationary object is calle the?
The stationary object is known as a frame of reference. The earth is a common frame of reference for humans.
When an object is seen moving in relation to a stationary object the stationary object is called the frame of reference or reference point?
Yes, the stationary object is called the frame of reference, or reference point, because it provides a fixed point that is used to describe the motion of the moving object. By observing how the moving object changes position in relation to the stationary object, we can analyze its motion.
When an object is moving in relation to a stationary object is the stationary object called the reference point?
true
To see if an object is moving you must have?
A stationary frame of reference.
How is the frame of a reference used to describe speed?
A frame of reference is used to measure the speed of an object by providing a point of comparison. Speed is described relative to a specific frame of reference, such as a stationary observer or another moving object. By establishing a frame of reference, we can determine if an object is moving at a constant speed or changing its velocity.
When an object is seen moving against a stationary background what is the stationary background called?
Parallax
Which state should a reference point be to be used to determine?
The reference point should be stationary, or not moving.
