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Sagot :
Since the acceleration of the body is directed toward the center of the motion and proportional to its displacement from that point, option a and c are the correct answers of simple harmonic motion
SIMPLE HARMONIC MOTION
Simple Harmonic Motion is the periodic motion of particle or object along a straight line such that the acceleration of the body is directed toward the center of the motion and proportional to its displacement from that point.
Another name for periodic motion is oscillatory motion.
Example are
- Motion of a simple pendulum.
- Motion of mass suspended from spring.
- Motion of loaded tube in a liquid.
A child swinging on a playground swing at angle Ø = 45° will experience back and forth movement which indeed is a simple harmonic motion.
A CD rotating in a player will experience a circular motion and not periodic motion
An oscillating clock pendulum (Ø = 10°) will also experience back and forth motion which is periodic motion and it is simple harmonic motion because it is directed toward a fixed point.
Therefore, option a and c are simple harmonic motion.
Learn more about Simple Harmonic Motion here: https://brainly.com/question/24646514
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