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\noindent {\bf Problem statement} At time $t=0$, Irwin fires a rubber
band at a spider on the ceiling. At time $t=3$ the rubber band hits
the spider and then the rubber band falls. Suppose $s(t)$ represents
the height of the rubber band above the floor at time $t$.  

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\noindent a) Which is larger, $s(1)$ or $s(2)$?  

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\noindent b) Which is larger, $s'(1)$ or $s'(2)$?  

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\noindent c) Sketch possible graphs of $s$ and $s'$ for $0\le t\le 4$.








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