As a pendulum moves closer to the equilibrium position, how do the velocity, acceleration, and force change?

As the pendulum swings toward equilibrium, its gravitational potential energy changes into kinetic energy, so its velocity increases. The restoring force along the swing is proportional to how far the pendulum is from equilibrium; as that displacement shrinks, the restoring force and the associated acceleration decrease. Thus, “the velocity increases, the acceleration decreases, and the net force decreases” is the correct choice.

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