A.2.1—Newton’s three laws of motion
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A.2 Forces and momentum
New
A.2.2—Forces as interactions between bodies
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A.2.3—Free-body diagrams
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A.2.4—Resultant force from diagrams
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A.2.5—Contact forces
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A.2.6—Normal force
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A.2.7—Frictional force
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A.2.8—Tension
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A.2.9—Hooke’s law restoring force
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A.2.10—Viscous drag
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A.2.11—Buoyancy
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A.2.12—Field forces
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A.2.13—Weight
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A.2.14—Electric force Fe
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A.2.15—Magnetic force Fm
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A.2.16—Linear momentum conservation
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A.2.17—Impulse
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A.2.18—Impulse-momentum change
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A.2.19—Newton’s second law forms
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A.2.20—Elastic and inelastic collisions
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A.2.21—Explosions
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A.2.22—Collision energy
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A.2.23—Centripetal acceleration
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A.2.24—Centripetal force
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A.2.25—Direction change in circular motion
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A.2.26—Angular and linear speed
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