Mechanics Forum

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I Precession of a gyroscope in freefall
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I Fluid force from a fluid flow vs. from a fluid jet
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B According to Newton's 3rd Law....
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I Why Did Newton Use d² for Gravitation Law?
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Solving a Sound Wave Equation in Physics 1: Halliday, Resnick, and Krane
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I Calculating Power Requirements for a Ski Tow Rope with Friction | 18.9% Incline
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I Confused about the axis of rotation in rotational motion w/o slipping
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I How do canonical transformations relate to Hamiltonians?
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I Dinosaur question -- Was Earth's gravity lower in the past?
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I Potentials of conservative forces
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I Rate of change of ##L## in a rotating coordinate system
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I Lagrangian mechanics - generalised coordinates question
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B Conservation of momentum in a closed system
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B Resultant force in vertical circular motion
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Is Counter-Steering the Only Way to Change Direction on a Motorcycle?
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B How do mechanical (weighing) scales work?
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I A little clarification on Cartesian tensor notation
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B A question from Resnik about g-force
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I How can you make a free body diagram for someone running then sliding?
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B Colliding balls: Conservation of momentum and changes in kinetic energy?
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A Change of a vector in a rotating coordinate system
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I Energy input\losses for a cyclist accelerating from a standing start
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I Solving Sub-Problem for OpenAI Lunar Lander v2: Seeking Advice
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I Normal force and details of the Earth holding up an object
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A Take your time, and feel free to ask if something is still unclear.
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I Is my calculation of the power spectrum correct?
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A Rotation matrix and rotation of coordinate system
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A Exploring Infinitesimal Rotations in Classical Mechanics
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B Vector of forces (question about how a scale works)
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B What Happens When The Applied Force Equals the Static Friction Force?
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I Dimensional confusion with a Lagrangian problem
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A Ambiguity in sense of rotation given a rotation matrix A
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A Matrix proof of Euler's theorem of rotation
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B Calculating the torque needed to rotate a drum
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I Steam flow rate in 2-chamber steam engine system
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I Friction Coefficient of Marble & Iron on Plastic
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A Hooke's law, Bertrand's theorem and closed orbits
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I Analytically Solving the Magnus Effect with Viscosity in Ball Flight Simulation
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B Independence of vertical and horizontal motion
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Work done by a constant Force: questions
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I Calculating Torque for 100 Ton Steel Tube Press
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A Two equations of generalized forces
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B Why doesn't a body accelerate upward when a force is applied?
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What's different in a transformer core when coupling high & low power?
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B Terminal Velocity Equation in vertical cylinder with some fluid
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A When is Hamilton's principle valid?
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I Maximum impact parameter given effective potential
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I Adhesive Collision: Coding for Sticky Objects
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B E.P.E. -> ? when 2 masses are attached to a spring
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I How does a large-angle pendulum oscillate?
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What comes on top of a generator of a PDE?
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A Interpretation of Lagrangian solution (complex numbers)
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B A Question about a Quote from the Feynman lectures
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I The power spectrum of Poisson noise
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I Calculating Force Needed to Pull Bungee Taught
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I Bouncing Height of Cylindrical Tube: Equation & Properties
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I Total angular momentum of a translating and rotating pancake
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A Russian Commentary on Chain Wheel Experiment
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I Time derivative using the quotient rule
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A Lagrangian for a double spring pendulum connected through a rigid bar
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A Dissipation function is homogeneous in ##\dot{q}## second degree proof
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I Issue calculating water pressure due to the constriction of water flow
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I Rolling balls with different rotational inertia
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I Time Derivatives: Hi Guys, Am I on the Right Track?
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I Two axis motion for any vehicle
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I Independent coordinates are dependent
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I Drawbridge falling before caught by rope/cable - Max force
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B Why don't boxers' skulls shatter from the forces of punches?
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I Why does a drip of water into water make a noise?
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B Why Do You Feel Like You're Moving Opposite the Car's Direction?
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B Is Newton's first law of motion applicable when walking?
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I Changing the RPM of a frictionless spinning wheel in a box
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Why do gyroscopes not fall down?
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How much atmospheric pressure is exerted on the human body?
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I Trouble simplifying the Lagrangian
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A Lagrangian Multipliers with messy Solution
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I Question about L(v^2) Notation in Landau & Lifshitz's Mechanics
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B Impulse and distance from the axis of rotation
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I Trouble understanding coordinates for the Lagrangian
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I Understanding the Coordinates in the Lagrangian for a Pendulum
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I Motorbike vs Football: Is It Possible?
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Real life example of the composition of two SHMs with same angular frequency
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B How is the acceleration proportional to the removed force?
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I Gearbox Gear ratio: How to get 60 rpm to 3500rpm? help please
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B Suggestions for Internal Assessment Project on Young's Modulus
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Pressure in a straight pipe vs a curved pipe?
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I Can I suck myself forward with a straw when floating in air?
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A Trying to solve an auto accident question
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Movement of a Ball Bearing within a cavity inside a Projectile
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B Relating displacements in a pulley system
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I Help please -- Trying to figure out rake barge capacity and displacement
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Velocity of air coming out of a nozzle
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I Forward momentum of mass due to inertia
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Pressure inside a plastic bottle filled with water and squeezed by X weight?
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B How to determine force based on pressure
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I Static rotational friction: does diameter matter?
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Escape Velocity Question: Why is the final kinetic energy = 0?
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A Hydraulic jumps: Why do they occur when/where they do?
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What is the Mechanical Advantage of this lever? (for pulling tree stumps)
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B Acceleration of Moving Particles: Explained
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