A rotating circular restaurant at the top of a hotel has a d
     A rotating circular restaurant at the top of a hotel has a diameter of 32.5 m. If it completes one revolution in 24.0 min, what is the velocity of the outer surface? 
  
  Solution
Here the radius = 32.5 = 16.25 m
so angular velocityy of the outer surface = 2pi x 24 = 48 pi
and thus its linear velocity = 48 pi x 16.25 = 48 x 3.14 x 16.25
= 2449.2 m per min.
Answer

