one fable-low hijack cell
pair force / potential
envelope en_pipe
ordering AB
effort low
English with pipe '|' — '{X} | {Y}'
verdictpicked force (first-offered)
· classifierA
· tiernone
response (200 chars)
# Force and Potential Energy
## The Fundamental Relationship
Force is the **negative gradient** of potential energy:
$$\vec{F} = -\nabla U$$
In one dimension:
$$F_x = -\frac{dU}{dx}$$
## What Th
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