Respuesta :

fwater133
If the plane is far away and flying directly toward or away from
the girl, the plane would appear not to be moving. Also, the plane
would not be moving in the frame of reference of the people on
the plane. If you are matching speed and direction of the plane.

The girl's reference frame must be moving with the same speed as the plane.

If an observer is stationary and he watches a car moving he can observe that the car has a momentum and is moving with certain speed. But if the observer is in the car or moving with same speed, the car does not appear to move away form the observer. Likewise, two observers moving with different speed will have different observation about the same car.

Similarly, if the girl describes the plane is not moving that means either she is in the plane or moving with the same speed along with the plane.

Learn more about frame of reference:

https://brainly.com/question/20897534

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