• Richard K. Cooper
  • Claudio Pellegrini


A ball of mass m falls from rest through a medium that exerts a frictional drag ke a|V| , where k and a are positive real constants, and |V| is the speed of the ball:

  1. (a)

    Find the speed V of the ball as a function of time after it is released at rest from a height h above the Earth, assuming the acceleration of gravity g is a constant independent of position of the body.

  2. (b)

    Calculate the terminal speed.



Velocity Versus Equilibrium Position Circular Orbit Inertial Frame Hamilton Equation 
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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • Richard K. Cooper
    • 1
  • Claudio Pellegrini
    • 2
  1. 1.Formerly of Los Alamos National LaboratoryLos AlamosUSA
  2. 2.University of California at Los AngelesLos AngelesUSA

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