Why is the displacement the same when the distance each traveled was different

The development of new inventions in the field of space travel seemed rapid. how does the word rapid function in a sentence?

Describe the misfit’s experience of the world. to what extent can his criminality be attributed to the conditions of his life? even though he is not in jail, is he a free man?

Which statement is true about the theme of a short story? a. the theme is directly stated in the story. b. the theme is the message the author wants to convey. c. the theme is the purpose of the story. d. the theme is the same as the subject of the story.