Mechanics Forum

Post thread
I How to convert density ratio of grams/ mm^3 into metric tonnes/ m^3
Replies
6
Views
2K
B Rolling without slipping in non-sloping surface
Replies
13
Views
2K
I Kleppner Classical mechanics: Question about stability (p.217)
Replies
2
Views
1K
B Does air resistance have a max value?
Replies
3
Views
2K
I Skateboarding Physics: Force of Landing from 10ft Roof
Replies
12
Views
1K
B Confusion with orientation of coordinate axis in inclined plane
Replies
40
Views
5K
B Conservation of Energy and Momentum in an Explosion
Replies
4
Views
2K
I Understanding Net Internal Torque and Kinetic Friction in a System
Replies
9
Views
2K
I Collision when a falling tank impacts the surface of a lake
Replies
7
Views
2K
I When are the initial and final momentums the same (conserved)?
Replies
16
Views
2K
I A Question About Shock Waves From an Airplane
2
Replies
82
Views
7K
I Direction of friction of each wheel and total moment when a car turns
Replies
6
Views
2K
I Does dW/dx = Fx and dW/dy = Fy?
Replies
17
Views
2K
I Forces to move on the level versus up an inclined plane
Replies
12
Views
2K
I If we throw a ball with initial velocity v0, is there a force?
Replies
3
Views
2K
Help with drag coefficient calculated from ballistic coefficient
Replies
3
Views
7K
I Confused about N*sin(theta) = (m*v^2)/r in banked curve
Replies
5
Views
2K
I Mass of Backpack in Moving Elevator
Replies
10
Views
2K
I Force between Positive and Negative Electrical Charges
Replies
4
Views
1K
Normal Force: Inclined Plane vs. Banked Turn
Replies
13
Views
6K
I How to interpret this definition of potential energy?
Replies
10
Views
2K
I Ceiling fan pressure increase or decrease
Replies
4
Views
2K
B Understanding Weight and Inertia: A Comparison of Mars and Earth
Replies
46
Views
4K
I Why is ∂σ(δxσ) not equal to zero?
Replies
6
Views
1K
B Does the Bernouli Effect Work On Cars?
Replies
8
Views
2K
I How to calculate the HP/torque required to rotate a dual sprocket/chain system?
Replies
20
Views
4K
B About actually touching something and sound made by collision
Replies
10
Views
2K
B Can I hold down more than my body weight on a 1 to 1 system?
Replies
13
Views
3K
I Why don't we "fly up" in an accelerating elevator?
Replies
11
Views
3K
B Does more energy mean more work?
Replies
2
Views
1K
I Tension/compression in curved truss? (Diagram attached)
Replies
2
Views
1K
I Which direction do the loads and reactions go in a Ferris wheel?
Replies
4
Views
2K
B Gravitational acceleration in circular motion
Replies
2
Views
2K
I Why is momentum considered a vector and kinetic energy a scalar?
Replies
15
Views
3K
I How to transfer angular momentum between two flywheels?
Replies
8
Views
3K
B Does weight affect the acceleration of an object?
Replies
9
Views
2K
I Understanding tension and centripedal force in a puck and weight
Replies
4
Views
2K
B To displace the Earth from its orbit
Replies
20
Views
2K
B Is the final velocity of a Tossed tomato the same as its initial velocity
Replies
10
Views
1K
B Work energy theorem by variable force
Replies
23
Views
2K
B Why does the work done by a weightlifter result in a net energy loss?
Replies
24
Views
3K
I Understanding the physics of a bosun's chair and mechanical advantage
Replies
6
Views
3K
I A problem with non evident first integral
Replies
17
Views
2K
B Misleading Textbook Equation for vf^2=vi^2 + 2ad
Replies
3
Views
3K
B Defining Impulse: The Importance of a New Quantity in Physics
Replies
10
Views
1K
B What Happens to a Ball's Energy When Thrown Upwards?
Replies
13
Views
2K
B Same case of Newton’s third law
Replies
1
Views
1K
B Work done in lifting and lowering an object
Replies
34
Views
4K
B What is the need for the concepts of Work and Energy (KE)?
Replies
8
Views
1K
B About verification on Kinetic energy and work
Replies
16
Views
2K
A Find Euler-Lagrange Equations w/Given Init Pos & Vel
Replies
12
Views
2K
B What is tension and how does it affect a rope?
Replies
2
Views
2K
I Problem with Static Friction -- Two blocks on a platform
Replies
23
Views
2K
B Newton’s second law as one complete law
Replies
27
Views
2K
B Calculate needed dimensions of table - Center of mass, levers etc
Replies
11
Views
2K
I Lift Force of a Rotating Sphere in the Air
Replies
7
Views
3K
I Understanding the thrust generated by a typical jet engine
Replies
2
Views
3K
B Understanding Friction: Causes and Applications in Physics
Replies
19
Views
2K
I Rotation of bike riding off cliff
Replies
28
Views
2K
Can someone explain the vacuum pressure created by water pressure on waders?
Replies
9
Views
5K
B What is the concept of distance as an integral in Feynman lectures on physics?
Replies
13
Views
1K
B Can the output forces for F3 and F4 be the same as F2 in hydraulic lifting?
Replies
4
Views
1K
B Calculating Flywheel Mass and Diameter for Efficient Generator Drive
Replies
9
Views
3K
B Atwood machine -- Question about the pulley and weights
Replies
12
Views
2K
B Air Gun Sighted at a Falling Target Demonstration
Replies
4
Views
2K
I Number of integration constants
Replies
6
Views
1K
I Can Any Quantifiable Variable Serve as a Coordinate in Euler-Lagrange Equations?
Replies
5
Views
2K
I The time derivative of kinetic energy
Replies
1
Views
2K
B Maximum Force on transom of a boat under acceleration
Replies
6
Views
2K
B Question about a simple free body diagram
2
Replies
76
Views
6K
B Speed/velocity as a derivative
Replies
6
Views
2K
B About Second equation of motion
Replies
5
Views
1K
I Kinetic Energy derivation assumption?
Replies
11
Views
2K
A Deriving Navier-Stokes: Lagrangian & Hamiltonian Methods
Replies
4
Views
2K
I The centripetal acceleration of the planets in our solar system
Replies
19
Views
3K
A Noether's theorem time invariance -- mean value theorem use?
Replies
6
Views
1K
I Work Done/Energy Transferred in One Dimensional Collision
Replies
5
Views
2K
I Time period of Beat (acoustics)
Replies
9
Views
2K
I Dimensional analysis seems wrong for this equation: z = -1/(x^2+y^2)
Replies
7
Views
1K
I Proving Torricelli's Law Using Bernoulli's Principle
Replies
20
Views
3K
A Why is this matrix symmetric here?
Replies
3
Views
1K
I What is the acceleration at the contact point between a wheel and surface?
Replies
17
Views
3K
B Grain direction for maximum tear resistance for a wire bound book
Replies
3
Views
1K
Use internal pressure to compute work done by an expanding gas?
Replies
15
Views
3K
B Inertial vs non inertial frames
Replies
3
Views
2K
Analysis of tennis string tension
Replies
16
Views
6K
B Confused about force body diagram for 2 body collision
Replies
6
Views
2K
I Resolve moment of inertia at an angle
Replies
2
Views
2K
B Question in the momemtum-impulse theorem derivation
Replies
9
Views
1K
I Liouville's Theorem and Poincare Recurrence Theorem
Replies
3
Views
1K
B Alternative elastic collision formula / physical interpretation
Replies
3
Views
1K
I Equiprobability of Particles in an Isolated Box
Replies
10
Views
1K
I Manuscript on elementary rigid-body dynamics
Replies
2
Views
1K
I Will the spinning gyroscope make the plumb fall slower?
Replies
3
Views
1K
I Coefficient of rolling friction for a lab cart
Replies
8
Views
5K
B Locus if velocity component is zero
Replies
6
Views
1K
I Precession of a gyroscope in freefall
Replies
10
Views
3K
I Fluid force from a fluid flow vs. from a fluid jet
Replies
16
Views
2K
B According to Newton's 3rd Law....
2
Replies
58
Views
8K
I Why Did Newton Use d² for Gravitation Law?
Replies
10
Views
2K

Hot Threads

Hot Threads

Recent Insights

Back
Top