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I Circular orbits aren't minimas of lagrangian for Kepler problem?
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3
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104
I Help with bolted joints
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291
I What is torque exactly?
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784
B Why doesn't the Navier-Stokes equation have a solution?
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4
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133
I The inclined plane paradox...
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168
I Energy of spinning objects as axis of rotation moves
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1
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99
I Kepler´s 2nd law -- Do any two planets sweep out equal area in equal time?
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11
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164
I Explanation of parallel axis theorem
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82
I Solutions to Simple Harmonic Motion second order differential equation
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1
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93
A Pair of interacting systems, driven coupled harmonic oscillators
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7
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206
I Pulley question -- Three pulleys lifting a mass...
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2
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211
I Dynamics of systems of material points
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2
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234
I Does Lagrangian Mechanics Handle Variable Mass System?
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3
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183
I Doubt about variable mass systems
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30
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419
I Calculating Water Pool Depth: Factors to Consider in Fluid Dynamics
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327
I Forward kinematics of a snake robot
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7
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745
I Acceleration in Newton's second law
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275
I What is the correct statement of Varignon's theorem?
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5
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325
B How to calculate hand force required to close a Hatch door against the force of a gas spring?
2
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I Pressurized containers: Stress distribution and large displacements
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I Conservation of Momentum versus Conservation of Velocity
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A How much thickness for sphere to withstand atmospheric pressure?
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249
I In a closed loop system with a pump, how can we control the pressure?
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25
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I Von Mises stress and real failures: Triaxial tension
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4
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384
Friction of a Wheel on the Axle?
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I Which stick hits harder? (one is stiff and other can be bent slightly)
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6
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359
I Using reference frames for derivation of Lagrangian
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25
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I How does an object know how far to move when it's moving?
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7
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410
I PIGA: Pendulous Integrating Gyroscopic Accelerometer
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240
I Distribution of torsion in a steel guitar string
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488
B Difference between muscular and normal force
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4
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304
I [Question] Calculating the force generated by a tarp hung between two walls
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14
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506
I Calculating phase shift between two sinusoidal waves
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353
Calculating Force for Garden Storage Box Lid: A Newton/Kilogram Question
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7K
I Some doubts about determining experiments
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3
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337
I Relationship between frequency and power for sound?
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9
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522
I Hamiltonian of the bead rotating on a horizontal stick
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3
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334
Estimating Pitch & Volume of Collision Sounds
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14
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2K
A Help in understanding this derivation of Lagrange Equations in Non-Holonomic case
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256
I Remark on centrifugal force in Heino Falcke's black hole book
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22
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591
A Virtual work of constraint forces in Hamilton’s principle
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7
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397
I Maximum torque without wheel slip
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9
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606
B Pushing a ship from onboard
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15
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414
A Hamilton's principle and virtual work by constraint forces
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3
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799
B Does the density of a liquid affect the braking of an object in free fall when it lands?
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2
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334
I Reference frames in terms of homogenity/isotropy
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18
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526
I Summing and averaging RMS pressure (amplitude) of sound waves
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2
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759
I Is there a list of root-power quantities? Or a rule of thumb?
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14
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606
I Why is the driven gear's torque's direction clockwise?
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6
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384
I [Questions] Modeling a Baseball Pitch Trajectory in 3D Space
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424
I Don’t understand the general form of the Sinusoidal Wave Equation
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5
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416
Why do heavier projectiles tend to have higher momentum?
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3K
A Fatigue limit for copper pipe
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343
I Importance of Moment of Inertia for designing helicopters and propellers?
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487
I Types of symmetries in Lagrangian mechanics
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425
I Lagrangian coordinate transformation (Noether)
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11
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549
I Why Lagrangian includes 1/2m by Landau?
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24
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666
B Moment of Inertia of Rectangles
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3
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584
I Solving Wheel Coming to a Stop: FBD, Friction & Hysteresis
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22
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894
I Trajectory collision calculation
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6
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546
I Does two-slit sound-wave interference pattern return to original form?
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10
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485
Insights How to Apply Newton’s Second Law to Variable Mass Systems
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922
I Effect of moving cargo on vehicle fuel consumption
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28
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B Why do we feel gravitational acceleration from the Earth and not from the Sun?
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5
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567
Paddle Wheel Torque Calculations
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I Lagrangian symmetry for the bullet and gun
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7
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433
I Inertia of body moving about two distinct parallel axes
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10
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704
I When Water acts like Glue (flat surfaces)
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18
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834
I Newton's Second Law - variable mass case
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14
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687
I If frictional force in system is <= us*N then there is no slipping
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7
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499
I Sound pressure and inverse distance law
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5
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559
I Effect of Nearby Mountain on an Ideal Pendulum
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1
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451
I Work-Energy Theorem for Moving Block and Spring System?
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4
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515
I Angular Momentum problem v2 (mass moving inward or outward)
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5
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587
Calculating actual weight lifted on a pulley weight machine
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14
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9K
I Noether’s theorem -- Question about symmetry coordinate transformation
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4
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547
Double pendulum motion (and Lyusternik-Fet Theorem)
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980
I Proof that canonical transformation implies symplectic condition
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7
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751
B Finding Angle Between Fluid & Horizontal: Clarified
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14
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640
I Tracing parabolic motion with only current velocity and position?
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2
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452
I Making a "Planetary Gear Set" using a 3D printer and PLA material
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4
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560
B Looking for help understanding scalars vs. vectors
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15
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627
B Water doesn’t fall in inverted half cup
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1
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585
I Board Breaking: Why Strike Center for Good Break?
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12
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753
I Aircraft guidance question: Effect of mounting sensors at the CG vs on the Tail
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10
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578
B Why is speed constant when centripetal acceleration is constant?
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24
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884
I Should we consider GPE in the vertical case of SHM?
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4
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549
I How come you have to use work energy to find v0 of spring?
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9
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658
I Find Best Water Nozzle Type & Pressure for Longest Distance
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31
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1K
I Stribeck v.s. Coulomb friction law
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1
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576
I Statics: When the reactions depend on the displacements
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5
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552
I Why can centripetal force balance out gravity?
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23
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941
B I don't understand torque
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13
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887
I Two beams joined after bending
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9
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970
B Need help understanding some concepts about friction
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12
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736
I Where is the centripetal force acting on mass M?
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21
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773
I Reaction moment on I.C. engine when we increase RPM
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26
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910
B Two points of contact in rolling
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11
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684
I Force Required for Gas Struts on 1972 VW T2 Danbury Pop top campervan?
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9
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1K
I Fuel paradox arising from Galilean transformation?
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4
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562

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