For a particle moving in a one-dimensional conservative potential U(x) with total energy E, which statements are correct?
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Question

For a particle moving in a one-dimensional conservative potential U(x) with total energy E, which statements are correct?

G1 Physics · Accepted Answer

K = E−U must be non-negative, so allowed regions satisfy E≥U. Turning points have K=0, hence E=U. Acceleration need not vanish at a turning point because force may be non-zero there.