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## Sample Document Text

Lecture 29
Chapter 10
Relationship Between Angular and
Linear Quantities
Rotational Kinetic Energy
Moment of Inertia
Homework 9 (from Physics for Scientists and Engineers, 7th
edition) Chapter 10
Questions: 2, 6, and 16
Problems: 1, 8, 17, 23, and 44
Due date: November 12, 08 (in class)
Relationship Between Angular and
Linear Quantities:
Speed Comparison
z The linear velocity is
always tangent to the
circular path
z Called the tangential
velocity
z The magnitude is
defined by the
tangential speed
ds d
vrr
dt dt
?
?== =
Acceleration Comparison
z The tangential
acceleration is the
derivative of the
tangential velocity
t
dv d
arr
dt dt
?
?== =
Relationship Between Angular
and Linear Quantities
z Displacements
z Speeds
z Accelerations
z Every point on the
rotating object has the
same angular motion
z Every point on the
rotating object does not
have the same linear
motion
sr?=
vr?=
ar?=
Relationship Between Angular and
Linear Quantit...

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