The position of a bicyclist on a straight road in kilometers over a period of 4 h is given by the graph in Figure 16, where inflection points occur when t = 0.5 and t = 2.
(a) Describe the motion of the bicyclist.
(b) Explain what the concavity of the graph over various intervals tells us about the speed of the bicyclist.

Transcribed Image Text:

30 25 20 15 10- 5 1 1 0.5 1 1 1 2 3 4