Asked by jb

It has been suggested that rotating cylinders about 12 mi long and 5.4 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth?

Answers

Answered by drwls
R = 2.7 miles = 1.426*10^4 ft
R w^2 = g = 32.2 ft^2/s
Solve for the angular speed, w, in radians/s
w = sqrt (g/R) = sqrt (32.2/1.4264*10^4)
= sqrt 2.259*10^-3 = 4.74*10^-2 rad/s
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