MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER It has been suggested that rotating cylinders about 17.5 mi long and 5.87 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? rad/s Need Help? Read It 6. [-/1 Points] DETAILS SERCP11 7.4.P.022.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 35.0-kg child swings in a swing supported by two chains, each 3.04 m long. The tension in each chain at the lowest point is 432 N. (a) Find the child's speed at the lowest point. m/s (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) N (upward)