Where did I go wrong in deriving potential energy?

71GA · Feb 7, 2011

Hello, i am trying to derive flexible energy, but i get a negative sign in front of a Work (A). Where did i miss?
F is force of a spring. I don't know if i used Hooke's law correctly...

Thank you for looking.

rcgldr · Feb 7, 2011

Nomrally, potential energy is the negative of the work performed by some force in moving some object from one point to another.

http://en.wikipedia.org/wiki/Potential_energy

71GA · Feb 7, 2011

rcgldr said:

Nomrally, potential energy is the negative of the work performed by some force in moving some object from one point to another.

http://en.wikipedia.org/wiki/Potential_energy

I am sorry i miss write... it is about flexible energy :)

nasu · Feb 7, 2011

I think you mean "elastic energy". And the elastic energy is a form of potential energy.
What you calculate is the work done by the elastic force between the points 1 and 2. This is equal to -(U2-U1).

Where did I go wrong in deriving potential energy?

Discussion

Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones

Graduate Does a moving particle count as a wave?

Undergrad Is Water's Volume Expansion Upon Freezing an Intrinsic Property?

High School Is it safe to fly in a spinning hollow asteroid?

High School The world is not enough

Undergrad Classical kinematics: cone and coin

High School Another kinematics problem

Graduate On a paper by Udwadia and Kalaba

High School Inclined treadmills and Galilean Invariance

Insights Revisiting the Velocity-Time Function

Insights Remote Operated Gate Control System

Insights AI Enriched Problem Solving

Insights Thinking Outside The Box Versus Knowing What’s In The Box

Insights Why Entangled Photon-Polarization Qubits Violate Bell’s Inequality

Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect

Where did I go wrong in deriving potential energy?

Discussion

Similar threads

Undergrad Where did I go wrong in deriving quantized energy?

Where Did I Go Wrong in Deriving Tensor Component Derivatives?

Undergrad Where Did I Go Wrong in Deriving Pi Using Calculus?

Where Did I Go Wrong in Solving the Inequality?

Chemistry Where Did I Go Wrong in My Gas Law Calculation?

Where Did I Go Wrong in My Refraction Problem Solution?

Deriving potential energy by simulation method

Where Did I Go Wrong in Proving Harmonic Motion in an Adiabatic Process?

Deriving potential energy of an electron inside a nucleus

Where Did I Go Wrong in Degenerate Perturbation Theory?