Question

A Ferris wheel has a diameter of 90 feet. How far does car travel in one revolution in terms of π?

180π


45π


160π


90π

Answer 1

The distance traveled is given by:

`S = R \alpha`

Where,

R: Ferris wheel radio

α: central angle

The angle for a revolution is:

`1rev = 2\pi rad`

Therefore, substituting values we have:

`S = (90)/(2)(2\pi)`

`S = 90 \pi`

Answer:

in one revolution the car travels:

`S = 90 \pi`