Mechanics Forum

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High School Net force on an object and its motion....
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Graduate Perpetual motion machines can't exist (Feynman's lectures)
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Undergrad Angular and linear velocity question
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Undergrad Sound Wave Doppler effect question
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Undergrad Relative velocity and force relationship
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Undergrad Something I don't understand about a simple tension problem
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Graduate Artificial gravity in a rotating space station
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Undergrad What is the physical significance of A and B in mass spring SHM solutions?
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Graduate Impulse Load Timestep: Reverse Engineering to Obtain dt?
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Undergrad Laws of motion while climbing a Rope
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Undergrad Regarding the measurement of horsepower
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Undergrad Is Constant Linear Velocity Possible in Rotating Particles?
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Undergrad Help with Newton's Law of Cooling
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Undergrad Roulette Prediction Algorithm Problem
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High School Why does my phone remain connected to its cable when being lifted by the cable?
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Graduate Modifying Newton's Kinematic Equations for High Altitude
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Graduate Eigenfrequencies of a multiple DOF system
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High School Is F=Kx Always Necessary for Spring Forces?
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High School How to calculate the deceleration of the object
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Undergrad Calculating kinetic energy turned into Pressure (Pascals) during an impact
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Graduate Energy and motion from ##R^6 \rightarrow R##
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Graduate Scleronomic or Rheonomic Mechanical System?
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Graduate Does Reversing Time Affect Acceleration and Velocity in Classical Physics?
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Undergrad Energy Lost During Purely Inelastic Collisions
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High School Phase angle and Phase in Simple harmonic motion
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Undergrad Help with motor for pulling uphill
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Undergrad Momentum of a System and External Forces
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Graduate Why is a negative sign included in Equation (6) for central-force motion?
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Undergrad Keeping helium in an unsealed balloon?
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Undergrad Vector Labeling Convention: Vxi or Vix?
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High School Building a Mousetrap Car for High School Physics Class
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High School Understanding the Parallelogram Method for Solving Forces
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High School The concept of a force lifting a weight and the work done
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Undergrad Work: Dot Product and Integral?
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Undergrad ##F=\dot{p}=\dot{m}v+m\dot{v}## and Galilean invariance
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Graduate What motor/payload mass ratio -> payload spins the motor
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Undergrad Calculating Tension in a Suspended Rope with a 50kg Weight
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Undergrad How Does Pressure Affect Dissolved Oxygen in Water Systems?
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Graduate When boiling water, what is the degree of freedom inside the vapour dome?
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Undergrad Kinetic friction direction on two stacked blocks
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Undergrad Max. acceleration of a pendulum changes with its length and mass?
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Graduate Puzzle: propagation of momentum in water
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High School Why is there a reverse wind current inside my convertible?
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Graduate Question about a stretched string's motion at the free end
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Undergrad Why do bubbles of air in water move up?
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Undergrad What force is preventing car wheel bolts from being removed?
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Undergrad Acceleration for a curved trajectory
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Undergrad How Much Energy Does a Dieter Use by Lifting Weights?
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Graduate Effect of ambient pressure on Newton cooling (water)
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Graduate Derivation of D'Alembert equation (for pressure waves)
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Undergrad Elongation of a spring in a two mass system
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High School "A sharp sound is perceived as being more intense than low"
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Undergrad Understanding Friction and Tension in Static vs. Dynamic Scenarios
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Undergrad Oscillators and conservation of energy
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Undergrad Doubts about the mechanics of walking
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High School Measuring the weight of gas in an inflated balloon
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High School Confused about equation solving
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Graduate Is there place for higher order derivatives in mechanics?
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High School Is Equilibrium a Scalar or Vector Quantity?
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High School Simple Pendulum: Oscillatory & Periodic Motion
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Undergrad Resonance between spring and pendulum: Different frequencies
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Undergrad How to get R= 2 ( square root ) h1h2
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High School Why is 'the velocity' in circular motion changing?
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Graduate Why does the partial pressure of H2O stay the same
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Undergrad Why doesn't the Spring Force change on splitting?
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Water drag lines - what's it called?
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High School The formulae for kinetic energy and Joules
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Undergrad Why do Harmonics Decay Faster than the Fundamental?
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Undergrad Entropic springs and Hooke's springs -- differences?
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Undergrad A manometer measures mechanical or thermodynamic pressure?
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Undergrad KiloNewton/Pound foot of thrust into Horsepower units
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High School Does the speed of sound change in metal when heated?
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Undergrad 2 Different Ways to Write Potential Energy of a Pendulum
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Undergrad PressureDrop/Pressure/Volumetric flow rate calculation (in a Pipe)
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Undergrad Force Resultants: Comparing Rules
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Undergrad Speed of fluid in a turbulent flow
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Undergrad Simple Harmonic Motion: why sin(wt) instead of sin(t)?
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Graduate Momentum transport in gases in 2d
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Graduate Why are central force fields irrotational and conservative?
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Undergrad Understanding the 1-D Kinematics Equations
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Undergrad Kinetic energy loss in disintegrated matter
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Graduate Carbon dioxide in liquid and gaseous phases with liquid water
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Undergrad Momentum, Energy, and Elastic Collisions
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Graduate Projectile motion with non-uniform gravity.
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Undergrad Phase angle of a damped driven harmonic oscillation
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High School What is water impact velocity formula?
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Undergrad Measurement and Graphing. Dependence of a Pendulum on length
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Undergrad What gives gravity its power to accelerate objects?
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High School What is the moment of inertia for a water bottle?
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High School How to make my Kelvin's Water Dropper work?
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High School How/Why Is So Much Force Generated In A Bender?
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Undergrad Lift and Drag force in a Wind Tunnel
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Undergrad Uniform circular motion and conservation of energy
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High School Weight of a box with a flying bird
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Graduate Velocity of a particle at time t in a rotating frame
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Undergrad John's Pickleball Return Angle Calc.
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Undergrad The physics of the inclined pushup
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Undergrad Could a <1g acceleration vehicle escape Earth's gravity well
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Graduate Equation for the resolving power of a microscope?
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Undergrad Is it possible to work out when the object stopped accelerating?
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