+129847 The function is
h = 21sin [ (4/5)pi * t) + 21
The tire makes 1 rotation every 60 /24 = 2.5 seconds
The scale on the y axis is 3 cm for every tick mark
The scale on the y axis = 2.5 /5 = .5 sec for each tick mark
At
0 sec h = 21 cm
.625 sec h = 42 cm
1.25 sec h = 21 cm
1.875 sec h = 0 cm
2.5 sec h = 21
Here's a graph in Desmos : https://www.desmos.com/calculator/xdweyepyi7
