How would a woman at an airport staring out of a window at an airplane know that the plane she is watching was moving?

Question

How would a woman at an airport staring out of a window at an airplane know that the plane she is watching was moving?

A. She could use the plane as a reference point.
B. She could use the building behind the plane as a reference point.
C. She could use the clouds in the sky as a reference point.
D. She could use other moving planes as reference, points.
Is the answer B?
Thank you.

Answer 1

Yes, the answer is B. The woman at the airport can use the building behind the plane as a reference point to determine if the plane she is watching is moving. By observing the relative motion between the plane and the stationary building, she can conclude that the plane is indeed moving. The option B correctly identifies the reference point that can help her make this determination.

How would a woman at an airport staring out of a window at an airplane know that the plane she is watching was moving?

yes.