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Circular Motion Loop question
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[QUOTE="haruspex, post: 4982642, member: 334404"] The second answer (r/2) is clearly wrong since it would not provide enough energy to reach the top of the loop even with no remaining KE. The calculation goes wrong because it equates the speed at the bottom of the ramp to that required at the top of the loop. The first answer is correct. [/QUOTE]
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Circular Motion Loop question
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