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07-25 Position and Velocity

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    And you put the point to say that is this last one, all the way at the end.
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    This corresponds to the mass having fully compressed the spring and again
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    it's stopping with 0 velocity for just that instant.
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    These other three points don't really make sense because they correspond to
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    since they're on this horizontal line here--this is the line of 0 velocity.
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    Anytime the mass is in between these extreme points of Xmax and -Xmax,
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    well it's going to be moving--so this doesn't make sense.
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    I will also tell you that when the object is swinging through so let's say
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    it's coming from this end and swinging through equilibrium.
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    When it goes through the equilibrium point, its velocity is maximized.
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    It's going very fast, as fast as it'll ever will go but will in this case it's going to the left.
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    Leftwards means negative, so that will correspond to this point.
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    We've already talked about what happens--it's going to compress the spring,
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    stop for a second, and then swing back through.
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    When it get through equilibrium on the swing through, well then it's going to the right
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    with maximum speed again corresponds to this point.
タイトル:
07-25 Position and Velocity
Team:
Udacity
プロジェクト:
PH100 - Intro to Physics
Duration:
0:59
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