- #1
SPhy
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Homework Statement
Given a conservative force, how can we obtain the change in potential energy?
Given a potential energy function, how can we determine the associated conservative force?
One dimensional.
Homework Equations
Fx = -du/dx
ΔU = -∫ F dx
The Attempt at a Solution
I know I can use the above expressions, however, how can I arrive at these expressions? My textbook and class notes simply say
BY DEFINITION: We will say the change in potential energy is equal to negative of the work done by the internal conservative force.
I know ΔKE = ∫ F ⋅ dr
I can integrate the right side but I obtain something like G(x1) - G(x2)
But then we define U(x) = -G(x) ?
So then to answer the question, should I simply use my equations listed above? Or is there a better way to approach this?