Topic — Relationship between forces and motion according to the principles of Newtonian dynamics.
Present in chapters
02·03
Linked atoms
135 linked atoms.
02 Forces and Newton’s laws
- Accelerations at fixed force
- Lift at the first instant
- Lift with a scale and a spring
- Spring scale in a lift
- Scale in vertical motion
- Crate with a piecewise force
- Circling a system
- Seatbelt
- How to draw an interaction diagram
- Conclusion — the tools of mechanics
- From diagram to applied force
- From the interaction diagram to the free body
- Two blocks tied together with an applied force
- Two bodies connected by a pulley
- Two masses at the same acceleration
- Two springs in parallel
- Example — person on a platform
- Worked exercise — block on an inclined plane with 3 forces
- Worked exercise — two boxes with a spring and a pulley
- Worked exercise — two boxes in equilibrium
- Worked exercise — the bulletproof vest
- Step force and v–t graph
- Minimum force to move a block
- Action-at-a-distance forces and contact forces
- Forces that admit a potential energy
- Car braking and the seatbelt
- Newton’s Principia
- The horse and the cart
- The book on the table (forces and couples)
- Mass: inertial or gravitational?
- The second law as a promise
- Atwood machine (numerical values)
- Disturbed Atwood machine
- Conical pendulum
- Pendulum in a braking train
- Inclined plane with kinetic friction
- First law (principle of inertia)
- Problem — Acceleration from net force
- Problem — Car against a wall (average force)
- Problem — Scale in a lift
- Problem — Crate hanging from the ceiling
- Problem — Crate pushed without friction
- Problem — Two blocks tied together on a frictionless plane
- Problem — The goods lift (scale graph)
- Problem — The passenger and the ball on the train
- Problem — Hooke’s law from experimental data
- Problem — Book on the table (action-reaction pairs)
- Problem — Atwood machine (symbolic solution)
- Problem — Spring with two hanging masses
- Problem — Pendulum on an accelerating vehicle
- Problem — Ranking of accelerations
- Problem — Surfer on the wave
- Problem — Three blocks connected with two tensions
- Problem — True or false on forces and motion
- Ranking of applied forces
- Jump from a chair (average force)
- High jump and knee bend
- Newton’s second law
- The second law for a system
- Third law (action and reaction)
- Pulling the tablecloth
- True or false on Newton’s laws
03 Inclined plane and circular motion
- Centripetal acceleration of Earth’s rotation
- Centripetal acceleration of a point
- Centripetal acceleration of a ball
- Acceleration on a bend
- Acceleration on an inclined plane with friction
- Bank angle of the bend
- Car on a flat bend
- Car on a flat bend
- Edge of the CD
- Aircraft-carrier catapult
- Coefficient of friction from the slipping threshold
- Dry and wet flat bend
- Flat bend with strong friction
- Banked bends
- Proof of centripetal acceleration
- Discs in contact: gears
- Coaxial discs
- Discs connected by a belt
- Rotating disc: edge speed
- Two masses on a triangular wedge
- Worked exercise — Kinetic friction from a kinematic measurement
- Worked exercise — Banked bend without friction
- Worked exercise — Inclined plane with kinetic friction
- What-if physics: zero gravity on a bend
- What-if physics: horizontal gravity
- Cut string
- Centripetal force on a string
- Forces on the plane as the angle varies
- The loop-the-loop
- The conical pendulum
- The bucket of water in the loop-the-loop
- The centripetal force
- The Atwood machine
- The Atwood machine: measuring gravity in the living room
- The Atwood pulley: the force on the axle
- The accelerating matchbox
- The skater on the half-pipe
- Mass on a frictionless plane
- Magnitude versus vector
- Rotating spring
- Spring on an inclined plane
- Motorcyclist leaning into a bend
- LEO orbit
- Ball on a rotating spring
- Conical pendulum
- Critical conical pendulum
- Why circular motion is accelerated
- Apparent weight on a merry-go-round
- Inclined plane with a pulley and a hanging mass
- Frictionless inclined plane
- Frictionless plane at 30 degrees
- Properties of the ideal string
- Pulley on a double inclined plane
- Four linked discs
- Ranking of centripetal accelerations
- Ranking of frictionless inclined planes
- Ranking of points on a rotating disc
- Ranking of four circular motions
- Choice of axes
- Skier at terminal velocity
- Can you accelerate without changing speed?
- Slipping threshold
- Estimate of the centripetal force on a passenger
- Summary table of the three cases
- Three rules, one idea
- Angular velocity and sign convention
- Speed of a conical pendulum
- Maximum speed on a flat bend
- Minimum speed in the loop-the-loop
- True or false on acceleration, velocity and friction
- True or false on circular motion and inclined plane