Angelina is standing on a sidewalk when her friend Paolo rides past on his roller skates. What is true about this motion?
1 Angelina is moving relative to Earth.
2 Paolo is moving relative to Earth.
3 Neither person is moving relative to Earth.
4 Both people are moving relative to Earth

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Answers

2014-06-20T17:31:27+08:00
2.Paolo is moving relative to Earth.
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