Join Professor Goetz on his glider flight from Pedra Bonita, Rio, Brazil to the beach. While watching it try to match these graphs obtained by the GPS. Then answer the following questions:
(a) What was the total descent of the flight? How long did it last?
(b) What was the average rate of descent throughout the flight? (What are the units?)
(c) What was the maximum instantaneous rate of descent during the flight? At what time did it happen?
(d) Was there a time interval when the glider was ascending?