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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.
Wiki User
∙ 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.
When an object is seen moving in relation to a stationary object is called the frame of reference or reference point?
When an object is seen moving in relation to a stationary object is called the frame of reference
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.
What is a reference point assumed to be besides not moving?
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 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.
Which state should a reference point be to be used to determine?
The reference point should be stationary, or not moving.
What is meant by the object is stationary?
Stationary is only meaningful in regard to a defined "Reference Frame", or "Point of Reference". The object is not moving relative to that Frame or Point.
Why must you choose a stationary object as a reference point?
By the equivalence principles of relativity you do NOThave to choose a stationary point as a reference, Any point in space may be chosen as no point is truly "stationary" and a point that is stationary in one reference frame will be moving in another.
Which state should a reference point be in to used to determine motion?
The reference point should be stationary, or not moving.
Which state should a reference point be in to be used to determine motion?
The reference point should be stationary, or not moving.
When an object is seen moving in relation to a stationary object the stationary object is called the frame of reference or reference point.?
This is usually called a reference point. Frame of reference is not an incorrect term, but it is used less frequently.
