Question #299413

The diameter of a Ferris wheel is 10 meters. From a platform 2 meters above the ground, you board the Ferris wheel at the bottom. Determine an equation for a rider's height in relation to time if it takes 35 seconds to reach the summit. Sketch the graph.

1
Expert's answer
2022-02-22T16:06:43-0500

Solution:

d=10 mr=5 md=10\ m \\ r=5\ m

So, amplitude=a=5=a=5

It takes 35 seconds to reach the summit.

So, 70 seconds for one complete revolution.

b=2π70=π35b=\dfrac{2\pi}{70}=\dfrac{\pi}{35}

The lowest point is 2 m off the ground and the radius is 5 m, so the midline will be at 7 m.

Thus, equation is: h(t)=5cosπ35t+7h(t)=-5\cos\dfrac{\pi}{35}t+7

Assume it as y=5cosπ35x+7y=-5\cos\dfrac{\pi}{35}x+7

Its graph is:


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