Mechanics Forum

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Undergrad Four L-shaped members Mechanical Analysis Problem
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2
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104
Undergrad Truss analysis problem
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0
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62
High School Mousetrap Car Energy efficiency
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7
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662
Undergrad Is energy really conserved?
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39
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2K
Graduate Help in understanding this derivation of Lagrange Equations in Non-Holonomic case
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1
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1K
High School Applied Mechanics -- Billiard Balls
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1
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291
Undergrad Is calling fictitious forces "not real" just about terminology?
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4
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114
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5K
Undergrad Acceleration on an electric unicycle, how much does the rider have to lean?
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2
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30
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2K
Undergrad Does Lagrangian Mechanics Handle Variable Mass System?
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4
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2K
Undergrad Energy requirements of a 4 wheel drive boat
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20
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760
Undergrad Conservation of angular momentum in the iceskater example
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10
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671
A remark on problem about trajectory of a projectile in the atmosphere
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2
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968
High School Using energy principles to find equilibrium depth of floating object
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8
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686
High School Newton's first law?
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2
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41
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2K
High School How to derive the 4 laws of motion using Calculus?
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3
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414
High School Effect of mass on the acceleration of an elastic pendulum?
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3
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483
Graduate Is 'Velocity of Transport' a Recognized Term in English Mechanics Literature?
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11
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757
Undergrad Derivation of Hamilton's Principle: Questions
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19
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1K
High School Average velocity as a weighted mean
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12
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661
High School Beam on an inclined plane
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4
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544
Undergrad 1:1 versus 2:1 Mechanical Advantage debate
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20
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780
Undergrad Free fall of person in a sled to direct horizontal motion by atmospheric resistance
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12
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583
Undergrad Adding total time derivative to Lagrangian/Canonical Transformations
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2
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584
Graduate Conflicting results about Stress tensor symmetry on EM field
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18
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815
Graduate Ultrasound Velocities in 25% Propylene Glycol + Water between 20-40C
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4
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469
High School Water Wicking between two containers
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2
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592
High School The work done by two objects on each other
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2
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55
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4K
High School How hydraulic pressure can change the magnitude of a force?
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7
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680
High School Conservation of Energy: Ball on a U-Shaped Ramp
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2
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698
Undergrad The solution to the balancing ball paradox
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21
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1K
High School Sympathetic motion generated by cleaning Rubik's cube
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10
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760
High School Study of SHM of an object attached to a vertical spring
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7
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975
High School Zero acceleration = zero net force?
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2
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33
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2K
High School Box being pulled up a slope with friction
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3
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2K
High School The weight of one of three bricks
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6
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950
Undergrad I never fully understood gyroscopic precession - toppling gyroscopes
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10
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802
High School Acceleration of an Object Moving in Circular Path
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6
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892
Undergrad Question about force from a torque arm extension
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2
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31
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2K
Undergrad Road crossing problem from AEH Love's text
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19
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1K
High School Reducing resonance in a rotating "World"
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8
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1K
High School Inclined treadmills and Galilean Invariance
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0
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734
High School Question about the definition of Torque Equilibrium
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14
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1K
High School A universe where Zeno is right and the law of inertia still holds
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6
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947
High School The ghost rad unit in angular motion
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6
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935
Undergrad Modeling Coulomb Friction for a Moving Point Mass in a Circular Bowl
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20
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2K
Graduate Trying to understand couple stress in continua
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6
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1K
Undergrad Change in the size of a hole in a constrained metal when heated
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9
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1K
Undergrad The Correlation of Pressure and Torque in Rotational Motion
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4
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907
High School Is this formula for Fnet valid for various man-in-elevator scenarios?
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5
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934
High School Waves travelling between strings
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3
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1K
Graduate Impact considerations
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4
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1K
Undergrad Is there a way in Lagrangian mechanics to incorporate the inertial response from initial momentum when using initial conditions instead of BCs?
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9
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1K
Undergrad Question about passive transport of water to the apex of a tree
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4
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1K
High School Validity of hydrostatic pressure equation
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5
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1K
Undergrad Conservation of Angular Momentum vs a gyro at the North Pole
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16
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1K
High School Acceleration regards F=ma
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8
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1K
Undergrad Effect of height and gravity on the size of fruit in a tree?
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10
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1K
High School Looking for quality data from ticker time experiments (for quadratic regression analysis)
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27
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3K
High School Path traced by a point on the periphery of the ball? Helix?
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6
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1K
Undergrad Writing an equation for torque around an arbitrary point on a body
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6
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1K
High School Is velocity ever a scalar quantity?
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48
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6K
High School Proper Understanding of Dynamical Systems and State Space
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5
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1K
High School Understanding randomness in universe
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1
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1K
High School direction and magnitude of force on an arrow that left a bow.
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3
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1K
Undergrad Question on analytic mechanics
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3
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1K
High School How is tangential velocity measured in m/s when it’s r * w?
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2
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41
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3K
High School Analysis of Simple Pendulum Motion
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2
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1K
High School thickness of skin of soap bubble
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1
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995
High School Can energy be decomposed?
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2
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1K
Undergrad Boundary conditions for a stream function in a hydrodynamics problem
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5
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1K
High School Are the following two formulas equivalent?
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17
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1K
Undergrad What is the characteristic of a system that turns it into a chaotic system?
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11
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1K
Undergrad Gravitation and nucleons
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25
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1K
High School Deriving v(t) from F(x), for Linear Motion
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1
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1K
High School Newton's Third Law in space
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20
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2K
Graduate Trying to establish a connection between the 2 rotating quadrants
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2
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1K
Help with a Rigid Pendulum Calculation please
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6
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3K
Graduate Cart pendulum problem when the pendulum is a beam with torsional stiffness
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2
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1K
Undergrad Torque required from powered roller to rotate cylinder
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19
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2K
High School Velocity of the tip of a 2m pole hitting the ground
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2
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1K
Undergrad Mechanics of Rolling and Striking Cones
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6
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2K
What determines heaviness of objects in Space?
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6
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2K
High School Resnick Halliday Krane: Venturimeter formula mistake?
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4
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1K
High School Can we differentiate with respect to a vector?
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10
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1K
High School Will there always be a vector product for 2 vectors in a 3d plane?
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8
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2K
Undergrad Design of Mechanism for Moving Soil -- Need help with an instability
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23
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2K
Undergrad Continuity of Hamiltonian at separatrix in action-angle variables
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1
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1K
Newton's 2nd Law confusion: mass times acceleration is not a force?
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2
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39
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3K
Undergrad Acceleration in Newton's second law
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5
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3K
Undergrad Mechanical Advantage of a Leveraged Squat Machine?
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9
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2K
High School Are frictional forces action forces or reaction forces?
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14
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2K
High School Friction and Newton's laws in car braking systems
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10
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2K
Undergrad Newton's Third Law: Action & Reaction Along the Line Connecting Two Objects
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5
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2K
High School Energy needed to raise an object to a certain altitude
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7
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1K
High School I don't get instantaneous impulse
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2
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1K
High School Questions about momentum and force as well as normal force/friction
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2
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35
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4K
High School The physics of flywheel launchers (like tennis ball shooters)
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3
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60
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5K
High School Can only one help me build prototype or simulation
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6
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1K
Undergrad Is the Earth-Sun system an oscillator? What is an oscillator?
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11
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2K
Undergrad Metal Ball Rolling in a Parabolic Bowl in the presence of a magnet
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1
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1K