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Forces and Newton's laws of motion

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Newton's first law of motion introductionMore on Newton's first law of motionApplying Newton's first law of motionWhat is Newton's first law?Newton's second law of motionMore on Newton's second lawWhat is Newton's second law?Newton's third law of motionMore on Newton's third lawWhat is Newton's third law?
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Newton's first lawGet 5 of 7 questions to level up!
Newton's third law of motionGet 5 of 7 questions to level up!
All of Newton's laws of motionGet 5 of 7 questions to level up!
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Normal force and contact forceWhat is weight?Normal force in an elevatorMore on Normal force (shoe on floor)More on Normal force (shoe on wall)What is normal force?
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Balanced and unbalanced forcesUnbalanced forces and motion
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Slow sock on Lubricon VINormal forces on Lubricon VI
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Inclined plane force componentsIce accelerating down an inclineForce of friction keeping the block stationaryCorrection to force of friction keeping the block stationaryForce of friction keeping velocity constantIntuition on static and kinetic friction comparisonsStatic and kinetic friction exampleWhat is friction?What are inclines?
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The force of tensionMild and medium tensionSuper hot tensionWhat is tension?Introduction to tensionIntroduction to tension (part 2)Tension in an accelerating system and pie in the face
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Treating systems (the hard way)Treating systems (the easy way)Two masses hanging from a pulleyThree box system problemMasses on incline system problem

About this unit

This is the meat of much of classical physics. We think about what a force is and how Newton changed the world's (and possibly your) view of how reality works.