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0922_chap14 - Announcements Agenda:Chapter14 Newtons2nd Law...

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Agenda: Chapter 14 – Newton’s 2 nd Law Announcements Applications – Cartesian Coordinates and Straight Line Motion (14.2) k d d Homework – due Friday 14.36, 14.41 Supplemental Problems 14.40, 14.51, 14.128
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Kinematics In many dynamics problems, separate elements of a system are connected (or constrained ) through kinematic mechanisms To solve dynamics problems, we must know how to develop these constraint equations R r 1 r 2 x 2 a b
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Pulley systems are a commonexampleof constrained motion inparticledynamics
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Describe the relationship between the DependentMotion position,velocityandaccelerationofblocks AandB. P iti di t ( d ) d fi d Positioncoordinates (s A and s B ) are defined fromfixeddatumlines,measuredalongthe directionofmotionofeachblock. Whatassumptionsdoyouneedtomake?
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Describetherelationshipbetweenthe position velocity and acceleration of blocks Example position, velocity and acceleration of blocks AandB.
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