Question

multiple select question
select all that apply
you see a train through a window. you are 10 m east of the train. using east as the reference direction, which describes the position of the train with respect to your position?
10 m west
-10 m
10 m east
+10 m
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Explanation:

1. First, understand the reference direction: east is positive. If you are 10 m east of the train, then the train is 10 m in the opposite direction (west) of you.
2. In terms of position with respect to you (your position is the reference), the train's position:

• Direction: West (since you are east of the train, the train is west of you).
• Displacement: Since east is positive, west is negative. So the train is at - 10 m (because your position relative to the train is + 10 m east, so the train's position relative to you is the opposite) and also 10 m west.
• "10 m east" and "+10 m" would imply the train is east of you, which is incorrect.

Answer:

A. 10 m west, B. - 10 m