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22 votes
22 votes
An object moves from point A to point B to point C, then back to point B and then to point C along the line

User Danila Plee
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2 Answers

26 votes
26 votes
Displacement. I would say this is either distance or displacement. Depending on what they want you to work out.
User Eliran Eliassy
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13 votes
13 votes

Answer:

Rectilinear propagation of light

User Andrei Mustata
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