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Q. A hollow cylinder (hoop) is rolling on a horizontal surface at speed 4.9 when it reaches a 18 incline.

a.)How far up the incline will it go?

b.)How long will it be on the incline before it arrives back at the bottom?

Q. It has been suggested that rotating cylinders about 11 mi long and 6.1 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?

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Category:- Physics
Reference No.:- M9271979

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