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 Post subject: resultant forcePosted: Sun, 21 Jun 2009 21:52:58 UTC
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If an object travels at a constant velocity indefinitely, does that mean the resultant force is zero? Thanks.

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 Post subject: Re: resultant forcePosted: Sun, 21 Jun 2009 22:23:20 UTC
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kasheee wrote:
If an object travels at a constant velocity indefinitely, does that mean the resultant force is zero? Thanks.

how does the word "indefinitely" change anything?

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 Post subject: Posted: Mon, 22 Jun 2009 17:50:18 UTC
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What I should have asked is whethee it being definite or indefnite has any impact?

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 Post subject: Posted: Tue, 23 Jun 2009 03:26:30 UTC
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The terminology "resultant force" in your question is peculiar. "Resultant" is usually used when a force is the result of other forces. Your question sounds like it means: "What net force must be exerted on a body to keep it in motion with a constant velocity (for an arbitrarily long time)". The answer to that is zero force, which is also a constant force.

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