What is F = -kx?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
This is Hooke's Law for elastic springs:
- F = restoring force (N)
- k = spring constant (N/m)
- x = displacement from equilibrium (m)
- Negative sign indicates force opposes displacement
Work done to stretch/compress a spring: W = ½kx²
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