Question

diameter of ferris wheel is 80 ft.

Answer 1

a) if the ferris wheel made one revolution every 45 second , find the linear velocity of a person riding in the ferris wheel
b) suppose the linear velocity of person riding in the ferris wheel is 8 feet per second .What is the time for one revolution of the ferris wheel ?

Answer 2

(a) Distance traveled in one revolution (circumference) = \[2\pi r = 2\pi \times 80ft = 502.65ft\]

Time elapsed in one revolution = 45 seconds.
\[\frac{502.65ft}{45s} = 11.17ft/s\]

(b) \[\frac{502.65ft}{8\frac{ft}{s}} = 62.83s\]

Answer 3

Oh wait, the diameter is 80 ft, I was using r=80ft

Answer 4

(a) 5.585ft/s
(b) 31.416s

Answer 5

I think you right from begining
d= diameter * pi

Answer 6

=80*pi

Answer 7

Well I was doing 2*pi*80 because I thought 80 was the radius, when it only should have been pi*80

Answer 8

80*pi=251.33?

Answer 9

I don't get b ?