### Home > APCALC > Chapter 7 > Lesson 7.3.6 > Problem 7-168

7-168.

A Ferris wheel, ** **Homework Help ✎

Sketch a diagram. Assume the wheel is rotating counterclockwise and let the passenger be at acute angle and height

*above a horizontal radius. Do you see the right triangle? Write a geometric equation relating*

*and*

*. Then implicitly differentiate the equation with respect to time.*

Determine the value of cos(*θ*) when ft.

Once you compute this value, use the differential equation to solve the problem.