Mechanics Forum

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Determine speed of car from result of impact?
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Calculate approximate speed of a collision?
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Where to place fixed axis of rotating motor
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3
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What causes a basketball to leave the ground after bouncing?
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Are stress and pressure additive?
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Pascal's law and kinetic energy in pipes
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Water pressure and flow restricton - does size matter?
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3
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Survive falling into water. Calm vs Disturbed
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How the wave impedance of free space works?
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4
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Function for the velocity of a bouncing ball
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How does an angled rod behave upon collision?
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Calculating Surface Tension Force in a Hemispherical Water Bulge
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12
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Direction of motion if there are two unequal opposite forces
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4
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A Classical Mechanics challenge for fun
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3
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Linear elasticity, strutural physics, pressure load
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16
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How can rotation with same phase be possible?
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5
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Vacuum or pressure to move spaghetti through a hole
5
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146
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Need help calculating acceleration out of a gravity well
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12
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Conservation of momentum in antennas
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Why are there modes in cantilever beam oscillation equations
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6
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A Supposition of Angular Motion
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The Mystery of Exhaustion: Exploring Where Our Energy Goes
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3
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891
Help in understanding sum of torque equation
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3
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Finding Torque Without An Angular Acceleration (stepper motor)
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4
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How does Nucleation work? Relationship with vacuums?
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2
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Force generated by a solenoid on a moving steel ball bearing
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Does the Wavefunction Collapse Violate Information Conservation?
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Newton's Estimates of Object Masses & Distances
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What is the kinetic energy of particles in plasma
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8
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Confusion with regards to power lines and the power lost
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2
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Equation to calculate torque to hold drill while drilling?
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5
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RMS speed in kinetic energy equation for gas
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5
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Potential inside a hollow sphere (spherical shell)
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How do tires create momentum and change axes in a car turning right?
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2
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Potential In parallal combination of resistors
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Pressure in Flow Work (u + Pv)
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1
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Mousetrap race car is not working
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16
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Does the weight of a lever influences the amplification?
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1
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Fluid mechanics in a water container, reference from Feynman
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13
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Friction on a flat rotating surface
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4
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Behavior of an ultrasound wave on a particle
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4
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How To Create the Fastest Rolling Can Possible
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13
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Trip to Space -- Can ship with 1g acceleration escape Earth?
2
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50
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If you fall down an escalator going up, do you ever stop falling?
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4
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Simplified: Equations of Motion of a Quadcopter
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1
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What is the difference between Kinetic Energy and Speed?
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3
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Thrust/Force and Angular Velocity
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3
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Moment of Inertia of a Propeller?
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2
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Why is force defined as the rate of change of momentum?
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4
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Why is Newton's equation of motion invariant to time reversal
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19
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Static friction being the force that opposes the reaction
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4
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1K
How large of a flywheel can my motor spin?
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12
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Confusion about conservation of energy vs. momentum
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3
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Power from mass and acceleration
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7
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Is the Bernoulli Equation enough to determine pump selection?
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18
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Exploring the Impact of Relative Velocities in Collisions
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Physical meaning of geometrical proposition
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3
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Jumping off a moving cart on a frictionless track
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15
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Work done by internal forces on a system of particles
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2
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Friction Force: When Does it Provide Motion?
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13
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Help understanding recent work on "Space-Time Crystal" and TTSB please
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9
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Leverage and Forces on a Pivot System
2
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36
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Kinetic energy: Legal to use kinetically independent frames?
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19
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What is the Relationship Between Interference and Wavelengths?
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4
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Understanding Newton's 2nd Law
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Velocity Estimate from Schlieren Flow Visualization
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4
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Space station artificial gravity - how to spin up to speed?
5
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159
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Effective Potential in Lagrangian & Hamiltonian Mechanics
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Observed speed of pitch different than catcher's view?
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1
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How is the momentum conserved inside of a fluid?
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4
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Why momentum is conserved for a jet of fluid?
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8
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How does a hollow fiber membrane work to filter water?
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4
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Ballistic Lenz's Law: Magnet Induced Current in Copper Tube
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3
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Work done due to static friction in a boat-man system
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3
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Does Compressing a Spring Decrease Its Potential Energy?
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4
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Is Gas Pressure in a Weightless Environment Mainly Due to Particle Collisions?
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5
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Tangential and centripetal acceleration in circular motion
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4
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Force, mass, acceleration, kinetic energy
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2
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Direction of momentum transfer?
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8
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Why does the equation for elastic collisions work like this?
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1
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Why do some devices work for a short time after unplugged?
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3
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Why pressure decreases with increase in velocity
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17
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How does this hoverboard work?
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6
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Conservation of angular momentum in a two ball collision
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7
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Position vs. time graph and the derivative
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5
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Programatically measure air pressure within a piston
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6
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Speed vehicle travelling on impact
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4
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Speed,mass,energy and a question.
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2
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809
Vacuum infusion bag - can external pressure help?
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2
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Why does adding more pulleys increase the force on a block?
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21
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Going beyond solar system with high speed
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Do objects in circular motion also *have* to undergo rotation?
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14
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How does drag force change the maximum height of projectile?
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4
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Finding length of an arc produced by projectile
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3
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How Much HP Needed to Reach 300 MPH in a Nissan 350z?
2
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36
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Orbital angular momentum wavefront velocity
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2
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How fast would a car be going to throw a 50lb object 38ft?
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4
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An odd question regarding Bernoulli's Principle
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5
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When exactly does error -> zero in calculus-based mechanics?
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6
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Saw this at work -- an air bubble trapped right under the water stream
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3
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