Question2. A ferris wheel has a diameter of 40 m and rotates once every 24 s . a) Draw a graph to show a person's height above or below the centre of rotation starting at the lowest position. (ie. make the middle of the ferris wheel be your 0 value on the $y$-axis). $$\begin{array}{l} a x=20 \quad a=\frac{|\max x-\min |}{2} \\ \text { in }=-20 \quad=\frac{(20-(-20) \mid}{2} \\ =\frac{\operatorname{max+min}}{2} \\ =\frac{20+(-20)}{20^{2}}=\frac{(20+20 \mid}{2} \\ =\frac{120 / 2}{2} \\ =0 / 2 \\ =\sigma \end{array}$$ b) Find an equation of the graph in a)