# Physics

After this ﬁrst encounter, the bird then turns around and ﬂies from the runner back to the ﬁnish line, turns around again and ﬂies back to the runner. The bird repeats the back and forth trips until the runner reaches the ﬁnish line.

How far does the bird travel from the be-ginning (including the distance traveled to the ﬁrst encounter)?

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