Determining a force law from a scattering experiment

James A. Blackburn, H. J. T. Smith
2004 American Journal of Physics  
An experiment is described in which a small permanent magnet is scattered by a second identical fixed magnet. The apparatus sits on an air table, so the scattered object can move with negligible friction. A ring of Hall effect switches surrounding the fixed magnet is used to determine the scattering angle. The experimental data are compared with numerical simulations and the form of the repulsive force between the two magnets is determined.
doi:10.1119/1.1604774 fatcat:mdbs2bfgirbytfsrcxnmmocqya