
Physics Physics Forum 
 LinkBack  Thread Tools  Display Modes 
May 16th, 2013, 03:20 PM  #1 
Senior Member Joined: Feb 2010 Posts: 199 Thanks: 0  [Research problem] A line & a circle w/ relative velocities
Hey guys. So I've been tasked with this crazy problem It's a part of my undergrad research project, which involves the Earth passing through dark matter domain walls. But i'm trying to crank out the easier scenario in 2D first. So imagine this: We have a circle, say centered at the origin, that is rotating about its axis at some velocity w. And a line, which is moving towards that circle at some velocity v. How can you find the velocity and angle of the line relative to the circle, if we are given several times at which some points on the rotating circle touch the moving line? It's pretty easy with the circle being stationary, but having added the angular velocity, I'm stumped now Any help is appreciated. 

Tags 
circle, line, problem, relative, research, velocities, w or 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
relative velocities between spinning disks  jsierra1987  Algebra  3  January 11th, 2012 11:36 AM 
A geometry problem about radical line of circle  duz  Geometry  0  January 30th, 2011 06:30 PM 
relative velocities  mikeportnoy  Algebra  1  February 18th, 2010 02:08 PM 
A problem concerning a tangent line and a circle  Lax  Trigonometry  5  September 10th, 2008 03:28 PM 
[Research problem] A line & a circle w/ relative velocities  Solarmew  Algebra  0  December 31st, 1969 04:00 PM 