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Dec 29, 2017 at 12:10 answer added sammy gerbil timeline score: 1
Dec 28, 2017 at 17:38 comment added DJohnM Potential energy, relative to what zero level?
Dec 28, 2017 at 13:47 vote accept segevp
Dec 28, 2017 at 13:24 comment added Qmechanic Every time you have a conserved field, you may introduce a potential for it.
Dec 28, 2017 at 13:14 comment added Shing @Mitchell I wrote an answer to this question, feel free to suggest anything. (my comment was written in a hurry, hence not quite precise)
Dec 28, 2017 at 13:12 answer added Shing timeline score: 2
S Dec 28, 2017 at 10:04 history suggested QuIcKmAtHs CC BY-SA 3.0
grammar and clarity
Dec 28, 2017 at 9:18 comment added Mitchell Magnitude of $\omega$ determines the magnitude of centrifugal force (at constant r).
Dec 28, 2017 at 9:11 review Suggested edits
S Dec 28, 2017 at 10:04
Dec 28, 2017 at 9:09 comment added Mitchell @Shing, You don't have to keep applying energy to keep the system rotating. The normal force applied by the body to the tube does not produce any torque about the axis of rotation (Newton's first law applies here). I believe this is not the answer to the question. For equilibrium, the centrifugal force will be cancelled out by the horizontal component of normal force and the weight of the body by the vertical one. So, the height to which the body rises depends on $\omega$ or centrifugal force.
Dec 28, 2017 at 8:58 comment added segevp @Steeven this is not the answer but what seems to be right in my wrong prespective
Dec 28, 2017 at 8:56 comment added Steeven What do you mean by the centrifugal force also having a contribution? Where do you see such a contribution in the result?
Dec 28, 2017 at 8:22 comment added Shing It is the one who rotates the whole thing (he has to keep inputing energy, s.t. the whole thing rotate at a fixed rate) contributing potential energy.
Dec 28, 2017 at 8:20 comment added Mitchell I strongly suggest you to add your ideas to your post, otherwise your post will be put on hold as a homework question.
S Dec 28, 2017 at 8:17 history suggested QuIcKmAtHs CC BY-SA 3.0
grammar and clarity
Dec 28, 2017 at 8:14 review Suggested edits
S Dec 28, 2017 at 8:17
Dec 28, 2017 at 8:13 history edited Qmechanic
edited tags
Dec 28, 2017 at 8:12 history asked segevp CC BY-SA 3.0