Mechanics Forum

Post thread
Undergrad How to Calculate the Force to Maintain an Object in Orbit?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad UBER EASY QUESITON: just need to make sure
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why does work done by a conservative force = 0 in a closed path?
  • · Replies 5 ·
Replies
5
Views
8K
Undergrad Equation of motion and acceleration
  • · Replies 1 ·
Replies
1
Views
2K
High School What pressures can a human survive in?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad If velocity is subjective to an observers frame of reference?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Plot 2D Trajectory: Solve Initial Velocity & Coordinates
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Does Newtons 3rd law corespond with pressure?
  • · Replies 1 ·
Replies
1
Views
2K
High School Why don't the moon crash down to earth?
  • · Replies 20 ·
Replies
20
Views
6K
Undergrad Tidal Power and Conservation of Energy
  • · Replies 13 ·
Replies
13
Views
11K
Undergrad Mechanics - massive pulley, Atwood machine or similar
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Unlock the Mysteries of Water: Questions to Aid in Building a Super Engine
  • · Replies 16 ·
Replies
16
Views
6K
How come there is no conservation of force?
  • · Replies 52 ·
2
Replies
52
Views
9K
Undergrad Oscillations - A puzzling demonstration
  • · Replies 7 ·
Replies
7
Views
2K
High School Initial Velocity of a Soccer Ball
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Sof landing of rockets on satelite
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Inertia tensor for multibody system(Robot)
  • · Replies 3 ·
Replies
3
Views
7K
Undergrad What Are the Key Challenges in Developing a Nitrogen-Powered Plane Prototype?
  • · Replies 17 ·
Replies
17
Views
5K
Undergrad Energy in scuba tank moving a car?
  • · Replies 4 ·
Replies
4
Views
5K
Graduate Was the Original Law of Conservation of Parity Flawed?
  • · Replies 5 ·
Replies
5
Views
6K
Graduate How Does Gravity Affect the Stretching of a Heavy Spring?
  • · Replies 17 ·
Replies
17
Views
7K
High School How does opening a window change the air pressure of a bedroom?
  • · Replies 13 ·
Replies
13
Views
51K
High School Incredibly Difficult Egg Drop Challenge
  • · Replies 9 ·
Replies
9
Views
9K
Undergrad Lenz's Law and conservation of energy.
  • · Replies 17 ·
Replies
17
Views
8K
High School How Do I Apply Basic Equations in 1-D Kinematics?
  • · Replies 3 ·
Replies
3
Views
6K
Graduate Classical Mechanics Video Lectures
  • · Replies 4 ·
Replies
4
Views
17K
Undergrad Gravitational Potential Energy deltaEg=(GMm/r1)-(GMm/r2)
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Bouncing Ball Equation: Height, Time, Angle 90o
  • · Replies 13 ·
Replies
13
Views
165K
Undergrad Solve Oblique Collisions in 2D OpenGL Physics Simulation
  • · Replies 6 ·
Replies
6
Views
6K
Undergrad Building a Submarine-Like Structure: Materials & Thickness for a Given Volume
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Could a Cosmic Perpetual Motion System Exist with Earth and Moon?
  • · Replies 21 ·
Replies
21
Views
4K
Undergrad Hydraulic problem , Water Main
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Kinetic energy of N solid bodies
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the best method for determining tire pressure accurately?
  • · Replies 17 ·
Replies
17
Views
12K
Undergrad Will a sprinter's speed keep increasing all the time?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Lift and Drag from Pressure Distribution over an Air Foil
  • · Replies 2 ·
Replies
2
Views
9K
High School Uncovering the Secrets of How WWI Planes Took Flight
  • · Replies 61 ·
3
Replies
61
Views
27K
High School What is the difference between Kinetic energy and momentum of a moving body?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Understanding Pressure Direction: Lift vs. Crush in Fluid Dynamics
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad How does buoyancy cause this wheel to spin?
  • · Replies 2 ·
Replies
2
Views
5K
High School How to pick theta while resolving vector.
  • · Replies 1 ·
Replies
1
Views
2K
High School Good links to physics demonstrations
  • · Replies 5 ·
Replies
5
Views
13K
High School Which wheel moves faster: the smaller or larger one?
  • · Replies 4 ·
Replies
4
Views
9K
Undergrad Rotation- is axle or wheel rotating?
  • · Replies 19 ·
Replies
19
Views
9K
Undergrad Physics in Movies: The Blues Brothers & The Man With The Golden Gun
  • · Replies 7 ·
Replies
7
Views
9K
Graduate Is there such a thing as gravitational pressure?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Simulating a Collision: Sphere & Particle
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad How can water pressure be measured in m
  • · Replies 6 ·
Replies
6
Views
15K
Graduate Liquid molecular Velocity Distribution
  • · Replies 4 ·
Replies
4
Views
10K
Undergrad Laptop Freefall Protection: How Sensors Detect Falls
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Calculate Linear Collision of Heavy Device and Light Package
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Hooke's law from first principles
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Controlling Electron Orbitals: The Key to Creating a Hydrogen Atom?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Relating Motor Torque to Vehicle Motion
  • · Replies 2 ·
Replies
2
Views
2K
High School Why Does Volume Not Affect Hydrostatic Pressure? | Dave
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Interesting problem (not homework)
  • · Replies 3 ·
Replies
3
Views
2K
High School Why do frozen objects weigh more than unfrozen ones?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad General question about center of mass
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Mechanical advantage pickup truck crane
  • · Replies 7 ·
Replies
7
Views
6K
Graduate Lagrangian of an isolated particle, independant from Newtonian Mechanics?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Inclined Plane Momentum Conservation with Frictionless Horizontal Surface
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Is the Electric Field a Source of Infinite Momentum and Energy?
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad Distance traveled by a rubber band powered car
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Gravatational pull of two objects with diffrent masses
  • · Replies 11 ·
Replies
11
Views
3K
High School Work & Energy: What is 1.89J of Work? Gravitational & Elastic Potential Energy
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Spring attached to string on one side, mass on the other.
  • · Replies 3 ·
Replies
3
Views
6K
Undergrad Rotational motion and the normal force
  • · Replies 5 ·
Replies
5
Views
5K
Undergrad What forces are involved in a container trapping air in water?
  • · Replies 5 ·
Replies
5
Views
3K
Graduate Angular Momentum of Point Particles
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Moon orbit and conservation of energy
  • · Replies 11 ·
Replies
11
Views
10K
Undergrad Calculate the rotational inertia through integration
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad What is the relationship between kg wt and Newtons through dimensional analysis?
  • · Replies 5 ·
Replies
5
Views
59K
Undergrad How can hydrostatic pressure drop to zero?
  • · Replies 5 ·
Replies
5
Views
16K
High School Calculating the Spring Constant for Bungee Jumping
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Force on a body through air pressure
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad MythBusters: Testing Impact Velocity Error
  • · Replies 8 ·
Replies
8
Views
4K
Graduate Why cant Hamilton mechanics deal with friction
  • · Replies 24 ·
Replies
24
Views
7K
Graduate Lenard Jones Potential & wavenumber
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad What is the Difference Between Kinetic Energy and Power in Ballistics?
  • · Replies 9 ·
Replies
9
Views
5K
Graduate The relation between angular and linear momentum
  • · Replies 4 ·
Replies
4
Views
12K
Undergrad How do I get momentum to assist rotational force from overcoming traction force?
  • · Replies 8 ·
Replies
8
Views
4K
Undergrad Negotiating a Bend: What is the Role of Inertia?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad New Flying Machine Idea - Is It Possible?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Does Newton's law of gravitation explain this?
  • · Replies 12 ·
Replies
12
Views
6K
Undergrad Does Work Hardening Create Smaller Crystal Grains?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Understanding Collisions with Springs: Inelastic vs. Elastic Motion Explained
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad If I roll a hoop forward, what keeps it up?
  • · Replies 17 ·
Replies
17
Views
5K
High School How Does Precession Keep a Spinning Bicycle Wheel Upright?
  • · Replies 3 ·
Replies
3
Views
3K
High School Why Do We Appear to Lean Left on a Curved Bus Ride?
  • · Replies 27 ·
Replies
27
Views
7K
Undergrad Calculating Distance & Energy for Explosion to Moon
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Calculate Power of Cable Force Moving Elevator Cab: 3.0x103 kg, 191 m, 23 s
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why do Newton's laws of motion only work in inertial frames?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Aircraft Simulation for beginners
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Water Dispenser Energy Conservation
  • · Replies 9 ·
Replies
9
Views
6K
Graduate Video lectures on particle accelerators
  • · Replies 5 ·
Replies
5
Views
11K
Undergrad What determines distance a baseball will travel when hit?
  • · Replies 3 ·
Replies
3
Views
7K
Graduate How is a 3D Mass-Spring-Damper System Expressed in Mathematical Physics?
  • · Replies 7 ·
Replies
7
Views
9K
Graduate Deriving Newton's Law of Gravitation
  • · Replies 9 ·
Replies
9
Views
18K
Undergrad How Does Time Influence Velocity in Different Scenarios?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad How much energy is needed to evaporate 1 liter of water in 5 minutes?
  • · Replies 14 ·
Replies
14
Views
77K