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please help on this one? The mass on the spring in this diagram is in harmonic motion between x = -5cm and x=5cm
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please help on this one? The mass on the spring in this diagram is in harmonic motion between x = -5cm and x=5cm

please help on this one? The mass on the spring in this diagram is in harmonic motion-example-1
User Nick Retallack
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2 Answers

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I think A. Point C I think
User Mathias Bak
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It is A (Point C) because in picture C you can see the brick is already at x=0 which means that it’s at the equilibrium point already. Therefore, the acceleration is zero too if you let go of the brick, and the brick wouldn’t move
User Georg Engel
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