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AP Physics 1: Algebra-Based›Unit 2: Force and Translational Dynamics›Force and Translational Dynamics

Systems and Center of Mass

Choosing a system decides which forces are internal and external; the center of mass moves as if all the mass were there.

Choosing a system
Internal vs. external forces
Center of mass

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2 videos ranked by how well they teach

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2Force and Translational Dynamics

Systems and Center of Mass
Free-Body Diagrams
Newton's Laws of Motion
Gravitational Force
Friction and Inclines
Spring Forces
Circular Motion and Gravitation

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Free-Body Diagrams

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Also called: center of mass, systems