Physics 409: Classical Mechanics
Fall ‘10
7 September
Lecture schedule
:
L6 
9 September: Ch.2, Sec. 2.2, 2.1, 2.3,2.5, 2.6, 2.7(3rd Ed.)
L7  14 September 2.4 (but not the version in GPS)
16 September: Chapter Test #1 on Chapter 1
Reading tips for 9 Sept.
: How does symmetry affect the form of the Lagrangian? What is a cyclic
coordinate? Are there constants of motion in nonconservative systems? Is the Lagrangian a
conserved quantity? Is the
energy function
,
h
, always conserved?
Reading tips for 14 September
: What do the Lagrange undetermined multipliers (
λ
j
) physically
represent?
What type of nonholonomic constraints is best handled by the method of Lagrange
undetermined multipliers?
What benefit is there from treating holonomic constraints this way?
Homework Set #3:
Due Tuesday, 14 September
(1)
A point particle with mass
m
is suspended vertically by a very stiff massless fiber of length
L
at a distance
X
(
X
>
L
) from a vertical wall that exerts a constant attractive
force
F
on the mass
point. The force is perpendicular to the wall.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Fall '10
 Wilemski
 mechanics, Coordinate system, Polar coordinate system, Coordinate systems, Lagrange undetermined multipliers

Click to edit the document details