Which of the following statements are true? - All periodic motions are simple ha

Question

Which of the following statements are true? - All periodic motions are simple harmonic motions. -Simple harmonic motion is periodic motion under the action of a restoring force that is inversely proportional to the displacement from equilibrium. -A system that undergoes periodic motion never has a stable equilibrium position. -Simple harmonic motion is periodic motion under the action of a restoring force that is directly proportional to the displacement from equilibrium. -A system that undergoes periodic motion always has a stable equilibrium position.

Explanation / Answer

-- All periodic motions are simple harmonic motions.

false(No. Periodic motion just means it repeats over and over with a common period.)

--Simple harmonic motion is periodic motion under the action of a restoring force that is inversely -proportional to the displacement from equilibrium. -

false(simple harmonic motion is a type of periodic motionwhere the restoring force is directly proportional to the displacement.)

--A system that undergoes periodic motion never has a stable equilibrium position.

false( undergoes periodic motion always has a stable equilibrium position.)

--Simple harmonic motion is periodic motion under the action of a restoring force that is directly proportional to the displacement from equilibrium.

true

--A system that undergoes periodic motion always has a stable equilibrium position.

true( A body that undergoes periodic motion always has a stable equilibrium position. )

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