It has been suggested that rotating eylinders about 19.0 mi long and 5.50 mi in

Question

It has been suggested that rotating eylinders about 19.0 mi long and 5.50 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 005790 Your response differs from the correct answer by more than 10%. Double check your calculations. radi Need Help? Notes Ask Your A 69.0-kg ice skater is moving at 3.99 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.830 m around the pole. Determine the magnitude of the force exerted by the horizontal rope on her arms is off by a multiple of ten. kN (b) Compare this force with her weight Need Help?

Explanation / Answer

5] Centripetal acceleration a = w^2r

w = sqrt(a/r) = sqrt(9.8/(5.5*1609/2))

= 0.0471 rad/s answer

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