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Problem: A marble moves along the x-axis. The potential-energy function is shown in the figure .At which of the labeled x-coordinates is the force on the marble zero?Which of the labeled x-coordinates is a position of stable equilibrium?Which of the labeled x-coordinates is a position of unstable equilibrium?

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Problem Details

A marble moves along the x-axis. The potential-energy function is shown in the figure .

At which of the labeled x-coordinates is the force on the marble zero?

Which of the labeled x-coordinates is a position of stable equilibrium?

Which of the labeled x-coordinates is a position of unstable equilibrium?

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