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DynamicsENGR 215, Section 01

– Goals

– Start from the general and work down

Overview

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Newtonian Equations

Energy Methods

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Motion

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Terms

• reference frame

• Point motion

• Rigid body motion

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A point has the same velocity and acceleration relative to any fixed point in a given reference frame.

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Curvilinear Motion

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Angular Motion

θ

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General Components

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Coordinates

θ

er

eθ

θ

en

et

ez ep

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Relative Motion

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Why would we ever use relative anything?

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General Relative MotionRigid Body

rB

rA

rA/B

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Moving Reference Frame

rB

rA

rA/B

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Homework 1

• Work Example 13.7• Derive constant acceleration

equations• Review vector mechanics• Read Chapter 13 and skim Chapters

17 & 20• Explain cross product, dot product,

and scalar product