Question

The restaurant in the Space Needle in Seattle rotates at the rate of one revolution per hour. (Round your answers to two decimal places.)
(b) How long does it take the restaurant to rotate through 8 radians?
(c) How far does a person sitting by the window move in 140 minutes if the radius of the restaurant is 21 meters?

Answer 1

i rev = 2pi radians
time = 8/2pi

arc length = radius*angle
angle for 140 min --> 2pi/60 per min --> angle =140*(2pi/60)

Answer 2

thank you!