Newton's laws at work: free-body diagrams, tension, friction and the forces that bend a path into a circle.
Newton's Laws: Forces Add Up Newton's Third Law & Free-Body Diagrams Time-Dependent Force Two Blocks and a String Two Blocks on a Table Circling Particle and Force Concrete Mixer Mass in a Cone Leaning Pole Two Masses and Two Pulleys Masses on a Table Three Masses Mass on an Accelerating Wedge Painter on a Scaffold Pedagogical Machine Disk with a Catch Planck Units Block on an Accelerating Wedge Newton's First Law: The Sliding Backpacks The Force to Accelerate a Fast Car The Force to Stop a Car What Makes a Car Go Forward? Newton's Third Law: Can the Assistant Move the Sled? Weight, Normal Force and a Box Accelerating the Box Apparent Weight in a Lift Adding Force Vectors The Hockey Puck: Which Free-Body Diagram? Pulling the Mystery Box Two Boxes Connected by a Cord Elevator and Counterweight (Atwood's Machine) The Advantage of a Pulley A Pendulum Accelerometer A Box Slides Down an Incline Friction: Static and Kinetic Pulleys: Block & Tackle, and an Incline Leaning Pole with Friction Sliding Blocks with Friction Stacked Blocks and Pulley Mass and Axle Tablecloth Trick Pulleys and Rope with Friction Block and Wedge Tension in a Rope Rope and Trees Spinning Loop Capstan Incomplete Loop-the-Loop Turning Car Car on Rotating Platform Mass and Springs Wheel and Pebble Bead on Rod Mass, String, and Ring Mass and Ring Retarding Force Hovercraft Push or Pull a Sled? Friction: Static and Kinetic A Box Against a Wall Pulling Against Friction Two Boxes and a Pulley The Skier A Ramp, a Pulley and Two Boxes Acceleration of a Revolving Ball The Moon's Centripetal Acceleration The Ultracentrifuge Force on a Revolving Ball A Ball Swung in a Vertical Circle The Conical Pendulum Skidding on a Curve Banking a Curve Two Components of Acceleration Falling with Drag Proportional to Speed