Mechanics Forum

Post thread
Undergrad Is Weight Force an Apparent Force on a Rotating Plate?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Can't seem to integrate this rectilinear motion equation.
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Calculating mutiple forces on a body
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the relationship between rotating objects and their surfaces?
  • · Replies 42 ·
2
Replies
42
Views
8K
Undergrad The Bicycle's Upright Mystery: Explained
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Can we write equations for strings in pulley systems?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Moment of inertia question; tube, solid cylinder on inclined plane.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Determining angular velocity radius and velocity of the center of rotation
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Work, spring, mass, gravity -part 2
  • · Replies 5 ·
Replies
5
Views
3K
High School Why do some boats lean into turns?
  • · Replies 43 ·
2
Replies
43
Views
15K
Undergrad Moment of Inertia of a body with linearly increasing density?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Understanding Hamiltons Principle & the Variational Formulation of Mechanics
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Escape velocity differential equation
  • · Replies 12 ·
Replies
12
Views
6K
Undergrad Is velocity the derivative of distance?
  • · Replies 1 ·
Replies
1
Views
8K
Undergrad How Does the Depletion Zone Affect Current Flow in a P-N Junction?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Moment Of Inertia of broken disk or ring confusion
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Work done by force acting on a spring
  • · Replies 37 ·
2
Replies
37
Views
11K
High School Will the Helicopter Appear in the Same Position After One Day?
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Formulation rigid body constraint
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What are the elements of the strain tensor for a wide beam under bending?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Conservation of energy question
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Identifying Equivalent Force in New Location: Examples & Solutions
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Differculty working out what is doing work in a mass attached to a spring system
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Lagrangian and External Forces
  • · Replies 7 ·
Replies
7
Views
5K
Undergrad Inertial and Gravitational Mass
  • · Replies 2 ·
Replies
2
Views
2K
High School How to figure out the pressure when you pick up a cup upside down in water
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Relationship between the phase and group velocity in a conducting medium
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Kinetic energy - why no g divisor ?
  • · Replies 15 ·
Replies
15
Views
4K
Undergrad Explaining Avogadro's Law using kinetic theory
  • · Replies 4 ·
Replies
4
Views
11K
Graduate Photon absorption and momentum recoil
  • · Replies 7 ·
Replies
7
Views
4K
High School Can you have a negative average velocity?
  • · Replies 10 ·
Replies
10
Views
28K
High School Vacuum needed for coin-feather tube?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why doesn't Newton define F=m(a^2)
  • · Replies 32 ·
2
Replies
32
Views
8K
High School Deceleration and Change of Direction
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Reduced volume flow in a hovercraft
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Integrating velocity with respect to time when velocity depends on position
  • · Replies 4 ·
Replies
4
Views
12K
Undergrad First sem. calc physics: Cable tension (vectors and acceleration)
  • · Replies 9 ·
Replies
9
Views
4K
Graduate The meaning of the D'Alembert's Principle
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Rotation around center of mass question
  • · Replies 7 ·
Replies
7
Views
4K
High School Can Velocity Be Negative When Acceleration Is Positive?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Moment of inertia and force needed to tilt/change axis of rotation
  • · Replies 1 ·
Replies
1
Views
5K
Undergrad Accelerationg of rotating mass *along* the axis of rotation
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Forums like these give me faith in humanity.I am busy with little
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Vector Mechanics Statics question
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Kelvin water dropper generator
  • · Replies 5 ·
Replies
5
Views
6K
High School Does Exerting Force on a Stationary Object Require Energy?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Formula for sink rate for aircraft landing?
  • · Replies 5 ·
Replies
5
Views
20K
Undergrad How high must an object be to not be pulled back to Earth?
  • · Replies 9 ·
Replies
9
Views
4K
Undergrad Calculate new water height in container after adding floating object
  • · Replies 1 ·
Replies
1
Views
8K
Undergrad Who or What is the Source of Work in Physics?
  • · Replies 1 ·
Replies
1
Views
2K
High School Does air friction increase a gunshot bullet's range?
  • · Replies 14 ·
Replies
14
Views
4K
Undergrad Calculating Projectile Distance: A Theme Park Curiosity
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Quantification of Levers and Similar Mechanical Devices
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Atomic clocks: day – night speed variations
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Estimating vehicle horsepower and torque
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Measurement of the Speed of sound
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Derivation in classical physics
  • · Replies 19 ·
Replies
19
Views
3K
Undergrad Method to carry out the isobaric process
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad In an inelastic collision momentum is conserved, but kinetic energy isn't?
  • · Replies 6 ·
Replies
6
Views
9K
Graduate Do particles and objects trend toward 0 velocity.
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad Aerodynamic/hydrodynamic drop pod
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Kinetic Energy in B field (is it really conserved)
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Kinematic Momentum: Is Mass x Volume Correct?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad How Fast Must a 1-Foot, 8-Blade Fan Spin to Push 125 Lbs of Air?
  • · Replies 7 ·
Replies
7
Views
6K
Undergrad Torque needed to overcome friction and move object
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Does molecular flatness affect friction differently?
  • · Replies 4 ·
Replies
4
Views
3K
High School Paper on colleration between air and sound
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Conservation of angular momentum and spin
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Does this example give a transcendental equation?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad How much force would it require to obliterate a baseball bat?
  • · Replies 4 ·
Replies
4
Views
9K
Undergrad How do we decide if a trajectory is 1D, 2D or 3D?
  • · Replies 4 ·
Replies
4
Views
4K
High School What Does Rest Mean? | Acceleration Explained
  • · Replies 16 ·
Replies
16
Views
21K
Graduate The Poincare Group: A Study of Second Part of 3.26 and 3.27
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Idea about change in Earth's rotation speed by Climate Change
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Collision, conservation of momentum and energy
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Rotational vs. Translational Energy in Rotation
  • · Replies 2 ·
Replies
2
Views
2K
High School Is Treadmill Running Easier Due to No Air Resistance?
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad Wind speed calculation from a pressure setting
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Elasticity, free energy of isotropic body mismatch
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Could Mesons Occur Naturally and Interact with Matter?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Buoyancy/Gravity Concept - How to insert buoyant weight into water column?
  • · Replies 7 ·
Replies
7
Views
5K
High School Why the significant water level drop?
  • · Replies 8 ·
Replies
8
Views
3K
Why is water heavier than it looks?
  • · Replies 14 ·
Replies
14
Views
4K
High School Measuring Movement and Distances in Sports: How Does It Work?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is energy conservation violated under gravity?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate The Devil's Gun: What Point Achieves Max Acceleration?
  • · Replies 9 ·
Replies
9
Views
3K
Graduate How Do You Calculate the Force on Screws in a Rotating Cylindrical Vessel?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Non-Autonomous System: Definition & Explanation
  • · Replies 1 ·
Replies
1
Views
3K
High School Can pressure affect the buoyancy of objects in water or air?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Puzzled about circular motion (whirling a bung on a string)
  • · Replies 21 ·
Replies
21
Views
9K
Undergrad Comparing the Internal Energy of Gasoline and Hydrogen
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How dense would an object have to be in order to hold up a makeshift earth.
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Is Buoyancy an Indication of Gravity's Attraction to Dense Matter?
  • · Replies 14 ·
Replies
14
Views
3K
Undergrad What Would Happen If a High Mass Object Hit a Wall at High Velocity Near Me?
  • · Replies 8 ·
Replies
8
Views
3K
High School Freezing water of different starting temp.
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Explanation for moving fluids having lower pressure
  • · Replies 33 ·
2
Replies
33
Views
6K
Undergrad Heavy Objects Bouncing: Factors & Variables
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Energy from torque in a ball launcher
  • · Replies 7 ·
Replies
7
Views
5K
Graduate How Do Holonomic Constraints Affect Degrees of Freedom in Lagrangian Mechanics?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Penetration depth below surface - Free Fall
  • · Replies 1 ·
Replies
1
Views
2K