You are watching the Chicago marathon from your friend's apartment, 100 feet above the street. A runner passes the building at 11 feet/sec. Let d denote the distance between the base of the building and the runner, and let h denote the distance between you and the runner. How fast is the distance between you and the runner changing 20 seconds after she passed the building?
2 answers
did you get it?
I got 220, did you?
I think mines is wrong though
I think mines is wrong though