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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Wrapping around a pole
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A puck of mass m on frictionless ice is attached by a horizontal string of length
 to a very thin vertical pole of radius R. The puck is given a kick and circles around the pole with initial speed v0. The string wraps around the pole, and the puck gets drawn in and eventually hits the pole. What quantity is conserved during the motion? What is the puck’s speed right before it hits the pole?
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