Mechanics Forum

Post thread
Will a Fly Survive a Car Accident?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Centrifugal Force: Get Logical Explanation
  • · Replies 3 ·
Replies
3
Views
5K
High School Conservation of Energy in daily life
  • · Replies 2 ·
Replies
2
Views
14K
Undergrad Solve the Riddle: Old Man Walks Across Bridge With 3 Bars
  • · Replies 8 ·
Replies
8
Views
9K
Graduate What Are the Fundamental Principles Governing Particle Dynamics?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Friction Challenge: Increasing Speed?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Obtaining Velocity Distribution P(v) for Simple Harmonic Motion
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Microstates - statistical mechanics
  • · Replies 9 ·
Replies
9
Views
4K
High School How Is the Formula for Kinetic Energy Derived?
  • · Replies 1 ·
Replies
1
Views
16K
Graduate Centre of Mass Theorem false for a rotating body?
  • · Replies 7 ·
Replies
7
Views
4K
High School What Is the Best Spot to Hit a Punching Bag Machine for Maximum Points?
  • · Replies 6 ·
Replies
6
Views
3K
High School How do sound waves move so that a person behind me can hear me in an open field?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Spinning top precess only when its axis is inclined
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Kinetic energy and conservation of energy go together?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Is momentum conserved in all inertial frames of reference?
  • · Replies 9 ·
Replies
9
Views
8K
Undergrad Surviving the Fall: The Physics of Cliffhanger's Epic Ending
  • · Replies 4 ·
Replies
4
Views
3K
High School Understanding the Physics Behind Dropping a Tennis Ball While Driving
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad RLC Damped Oscillator: Why Quicker to Zero in Critically Damped Case?
  • · Replies 3 ·
Replies
3
Views
7K
Graduate Simulating Coliding Springs - Is it possible without invoking conservation laws?
  • · Replies 2 ·
Replies
2
Views
2K
High School Calculating Law of Levers Moments
  • · Replies 1 ·
Replies
1
Views
10K
Graduate What Happens When an Object with Zero Rotational Inertia Spins?
  • · Replies 5 ·
Replies
5
Views
3K
High School When to use term Rotational motion and Circular motion?
  • · Replies 2 ·
Replies
2
Views
10K
Undergrad Oddball Questions: Strength of Bonds in Atoms & Zero Gravity
  • · Replies 4 ·
Replies
4
Views
2K
High School Convert Any Form of Energy to Solar Energy?
  • · Replies 6 ·
Replies
6
Views
3K
High School Falling Down a Hole Through the Earth: What Would Happen?
  • · Replies 12 ·
Replies
12
Views
3K
High School Unravelling the Mystery: What Happens When You Squash Something?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Classical mechanics & runge-kutta
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Id appreciate feedback to develope an idea
  • · Replies 23 ·
Replies
23
Views
4K
Undergrad Understanding the Relationship Between Nozzle Size and Fire Extinguishing Power
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Are Newton's 1st and 2nd laws equivalent statments?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Speed of the molecules on the gas kinetics theory
  • · Replies 1 ·
Replies
1
Views
6K
Undergrad How do the casters on a turntable support the weight of a motorcycle?
  • · Replies 4 ·
Replies
4
Views
7K
Undergrad Eqilibrium between ice and water
  • · Replies 6 ·
Replies
6
Views
7K
High School How does the water powered calculator work?
  • · Replies 9 ·
Replies
9
Views
4K
High School Sideways Acceleration: What Is It?
  • · Replies 3 ·
Replies
3
Views
6K
High School Explain Work, Energy and Power
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Designing the Fastest Ramp for a Ball: Solving a Challenging Physics Problem
  • · Replies 1 ·
Replies
1
Views
4K
High School Wind Power: Where Does the Energy Come From?
  • · Replies 20 ·
Replies
20
Views
8K
High School Why does a balance scale equal out?
  • · Replies 4 ·
Replies
4
Views
4K
High School The Ball in Train: Who's Right?
  • · Replies 18 ·
Replies
18
Views
7K
Undergrad Can He Gas Be Compressed into a Quark Plasma State?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Raindrops Sliding Down Car Window: Speed?
  • · Replies 2 ·
Replies
2
Views
2K
High School Thrill of Zero G's: What Happens When You Reach 2.5 G's?
  • · Replies 5 ·
Replies
5
Views
5K
Graduate Strange phenomenon observed, friction and wear
  • · Replies 4 ·
Replies
4
Views
4K
Graduate The energy potential of sand static
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Measuring Very Small Forces in the Lab
  • · Replies 6 ·
Replies
6
Views
6K
High School Understanding the stiffness of springs
  • · Replies 7 ·
Replies
7
Views
2K
High School Is Terminal Velocity Affected by Air Resistance?
  • · Replies 11 ·
Replies
11
Views
10K
Undergrad Orbital Energies And Force Perpendicular to Motion
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Isn't escape velocity against classical physics?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Question about Potential Energy.
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Calculating Pencil Pendulum Angle with X/Y Coords
  • · Replies 4 ·
Replies
4
Views
3K
Graduate How Can Neural Networks Control an Inverted Pendulum on a Cart?
  • · Replies 2 ·
Replies
2
Views
7K
High School How do people maintain balance while riding a bicycle or skating?
  • · Replies 2 ·
Replies
2
Views
2K
High School Sliding Box: Constant Speed or Increasing?
  • · Replies 8 ·
Replies
8
Views
3K
High School Simple harmonic motion summary
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Cars A and B are d=60m apart and travelling at u(A)=8.8
  • · Replies 1 ·
Replies
1
Views
2K
High School Does Hot Water Freeze Faster? Investigating the Claim
  • · Replies 15 ·
Replies
15
Views
5K
Weight of Charged vs. Uncharged Battery
  • · Replies 8 ·
Replies
8
Views
20K
High School If time was stopped, is inertia conserved?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad What Happened to Potential Energy in E=m[tex]c^2[tex]
  • · Replies 3 ·
Replies
3
Views
2K
High School Easier to walk upstairs, but why is it harder to walk down?
  • · Replies 11 ·
Replies
11
Views
9K
High School Understanding the Relationship Between Static and Kinetic Friction
  • · Replies 12 ·
Replies
12
Views
12K
Undergrad Escape Velocity: How Does It Affect Objects of Different Masses?
  • · Replies 18 ·
Replies
18
Views
9K
Undergrad Can kinetic friction be greater than static friction? How can this be tested?
  • · Replies 7 ·
Replies
7
Views
3K
High School Is Slow Travel Through Earth's Atmosphere Possible?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Is Cp Used Only for Processes with Flow Work in Power Cycles?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Spin Decay Due to Fluid Friction for a Sphere
  • · Replies 6 ·
Replies
6
Views
4K
Undergrad Whats wrong with this free energy experiment
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Phase velocity, Group velocity
  • · Replies 2 ·
Replies
2
Views
7K
High School Left/Right Hand rule for Motor Principle
  • · Replies 2 ·
Replies
2
Views
11K
High School Potential Energy for objects on the groun
  • · Replies 3 ·
Replies
3
Views
2K
High School Truss Bridges: Strength Explained
  • · Replies 3 ·
Replies
3
Views
4K
High School Is terminal velocity constant?
  • · Replies 4 ·
Replies
4
Views
10K
Undergrad Confused: Net Torque vs Net Force
  • · Replies 2 ·
Replies
2
Views
54K
Graduate Continuum mechanics- open questions?
  • · Replies 4 ·
Replies
4
Views
4K
High School Proper Jump Starting Technique for Car Batteries
  • · Replies 7 ·
Replies
7
Views
11K
High School Breaking strength of a piece of material
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad Can dust agglutinate without water?
  • · Replies 4 ·
Replies
4
Views
2K
High School Why doesent water fall down from a bucket while rotating it upside down?
  • · Replies 6 ·
Replies
6
Views
12K
Graduate Deriving Torque Equation from Newton's Laws
  • · Replies 7 ·
Replies
7
Views
7K
Undergrad Measure visocity of water by poises
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Work Energy Theorem in Moving reference frames
  • · Replies 2 ·
Replies
2
Views
7K
Undergrad Argument with a co-worker about gravitation
  • · Replies 20 ·
Replies
20
Views
12K
High School Heavier objects fall faster myth or fact?
  • · Replies 2 ·
Replies
2
Views
21K
Undergrad Does Gravity Depend on ratio of mass between objects?
  • · Replies 8 ·
Replies
8
Views
10K
Undergrad Conservation of Momentum - true?
  • · Replies 37 ·
2
Replies
37
Views
18K
Graduate Elliptical Motion: Formulating Object Motion & Finding Theta
  • · Replies 1 ·
Replies
1
Views
9K
High School What is the relationship between time and velocity?
  • · Replies 15 ·
Replies
15
Views
3K
Graduate Poincare invariant action of a point particle
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Do the laws of motion apply to all states of matter?
  • · Replies 6 ·
Replies
6
Views
2K
High School Force on Moving Object: What Happens at Theta?
  • · Replies 6 ·
Replies
6
Views
11K
Undergrad Non-Existent Force: What Does it Mean & Why?
  • · Replies 1 ·
Replies
1
Views
5K
Graduate How Does the Fourth Dimension Affect Gravity?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Right hand rule in vector cross product
  • · Replies 7 ·
Replies
7
Views
8K
High School Who would hit the ground harder?
  • · Replies 26 ·
Replies
26
Views
6K
Graduate Partial pressure and dehydrators
  • · Replies 4 ·
Replies
4
Views
3K
High School Force required to move stationary vehicle?
  • · Replies 12 ·
Replies
12
Views
42K
Undergrad Newton's Calculus: What He Came Up With & Notation Used
  • · Replies 2 ·
Replies
2
Views
5K
Graduate How to derive air drag formula?
  • · Replies 2 ·
Replies
2
Views
5K