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10x-17 Springs and Tables

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    For this question, we're going to think about a table that, by the way, is a table.
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    On this table we're going to put a giant spring.
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    Here's the spring, uncompressed, not stretched, totally at equilibrium,
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    totally boring, so let's compress it.
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    The way we're going to do that is by squeezing it back a distance Δx,
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    and by putting a little block here with mass m, of course.
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    Of course--I shouldn't even have to say it--this table is frictionless.
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    Of course, this table has some height h and the spring has some constant, some stiffness, k.
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    When I squeeze this, if I let go what's going to happen?
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    The mass is going to fling forward and shoot off and land somewhere over here.
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    Your job for this question is to tell me what is this distance d.
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    Now, you can't answer it yet. Let me give you some numbers.
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    The height of the table is 2 m. The mass is 1 kg.
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    Δx is 25 cm--not meters.
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    The spring constant is 350 N/m.
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    That should be enough information for you to tell me what is d.
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    How far will this object fall from the table when it finally lands?
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    You can enter your answer here in meters.
Tytuł:
10x-17 Springs and Tables
Video Language:
English
Team:
Udacity
Projekt:
PH100 - Intro to Physics
Duration:
01:08
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