Question 638584
A ferris wheel has a raidus of 20 m. Passengers get on halfway up on the right side. The direction of rotation is counter clockwise. The bottom of the ferris wheel is 2 m above ground. It rotates every 36 seconds.

I had to draw it and I think that is right, but I am not sure how to determine a sine function that expresses my height. when h is a function of elapsed time t.
------------------
The eqn of the rotation is h(t) = 20*sin(2pi*t/36)
Add 2 for the ground clearance, and 20 for the center 20 m above ground.
--> h(t) = 20sin(pi*t/18) + 22
t in seconds, h in meters
---------------
h(15) = 20*sin(15*pi/18) + 22
= 32 meters
------------------