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Simple Harmonic ball bounce

  • Thread starter bpw91284
  • Start date
67
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1. Homework Statement
A ball bounces up and down off the ground and each bounce it returns to the same height. Is this simple harmonic motion?

2. Homework Equations
None

3. The Attempt at a Solution
I don't think it is because in simple harmonic motion the maximun velocity occurs in the middle of the amplitudes but for the bouncing ball it occurs right before and right after it hits the ground. If that is correct, can someone explain it better?
 

Answers and Replies

458
0
That's right, a ball bouncing up and down would be periodic motion, but not simple harmonic motion. The ball bouncing doesn't follow a sinusoidal curve, as well.
 
67
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That's right, a ball bouncing up and down would be periodic motion, but not simple harmonic motion. The ball bouncing doesn't follow a sinusoidal curve, as well.
What would it's height vs. time graph look like?
 
458
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http://www.claflin.edu/Academic/Science-mathematics/Mathematics/nasa_nova/doc2_files/image002.gif

Except if it doesn't lose energy on its way up, all the peaks are equal.
 
67
0
http://www.claflin.edu/Academic/Science-mathematics/Mathematics/nasa_nova/doc2_files/image002.gif

Except if it doesn't lose energy on its way up, all the peaks are equal.
Ya I figured out what it would look like right soon after I asked the question. Thanks for the help.
 

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