Homework 4: # 2.18, 2.21, 3.13, 3.14, 3.20
October 12, 2012
2.18 A point mass is constrained to move on a massless hoop of radius a xed
in a vertical plane that rotates about its vertical symmetry axis with constant
angular speed . Obtain the Lagrange equ
In Class Assignments
October 12, 2012
1
In Class Assignments #1
1.13. Rockets are propelled by the momentum reaction of the exhaust gases
expelled from the tail. Since these gases arise from the raction of the fuels carried
in the rocket, the mass of the
Goldstein Chapter 1 Derivations
Michael Good
June 27, 2004
1
Derivations
1. Show that for a single particle with constant mass the equation of motion
implies the follwing dierential equation for the kinetic energy:
dT
=Fv
dt
while if the mass varies with