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  1. Not quite simple harmonic motion if friction is involved. There could be as many as 4 different times during the first vibration that the mass is 2 cm from the neutral point. I will assume they want the first approach to this position after release Let's...

    3 Answers · Science & Mathematics · 11/07/2019

  2. ... friction is a reaction force to whatever force is trying to cause motion and mu Fn is a maximum possible value - Fs variable depending on circumstances when this block is stationary the forces are in equilibrium force down plane = friction...

    2 Answers · Science & Mathematics · 18/06/2019

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