relative motion, atwood’s machine & inclined planes dynamics extension – part ii physics 12

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Relative Motion, Relative Motion, Atwood’s Machine & Atwood’s Machine & Inclined Planes Inclined Planes Dynamics Extension – Part II Physics 12

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Page 1: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

Relative Motion, Atwood’s Relative Motion, Atwood’s Machine & Inclined PlanesMachine & Inclined Planes

Dynamics Extension – Part II

Physics 12

Page 2: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

Learning Outcome (Student will…):

use vector analysis in two �dimensions for systems involving two or more masses, relative motions, static equilibrium, and static torques

Page 3: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

Relative MotionRelative MotionDefinition: Reference Frame – a

coordinate system in which an experimenter makes position and time measurements of physical events

Definition: Inertial Reference Frame – that in which the Laws of Motion apply (not accelerating)

How do we analyze motion in two different reference frames?

Page 4: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12
Page 5: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12
Page 6: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12
Page 7: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

Atwood’s Machine Atwood’s Machine (simple)(simple)

Page 8: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

Example of Modified Example of Modified Atwood’s MachineAtwood’s MachineA 15 kg cart is attached to a hanging 25

kg mass. Friction is negligible. What is the acceleration of the 15 kg cart?

Page 9: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

Inclined PlanesInclined Planes

Page 10: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12
Page 11: Relative Motion, Atwood’s Machine & Inclined Planes Dynamics Extension – Part II Physics 12

What is the acceleration of the system? What is the tension developed in the connector?