AP Physics C: Mechanics
7.1 Defining Simple Harmonic Motion (SHM)
A particle of mass \(m\) moves along the \(x\)-axis in a potential energy field given by \(U(x) = kx^4\), where \(k\) is a positive constant. Which of the following correctly gives the force \(F(x)\) acting on the particle and explains why the resulting motion is not simple harmonic motion?
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