Calculate initial velocity to move a set distance with inertia

Posted by Bodyscanner on Stack Overflow See other posts from Stack Overflow or by Bodyscanner
Published on 2010-03-21T12:36:03Z Indexed on 2010/03/21 12:41 UTC
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Filed under:

velocity

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motion

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drag

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inertia

Hello,

I want to move something a set distance. However in my system there is inertia/drag/negative accelaration. I'm using a formula like this for it:

velocity = oldVelocity + ((velocity - oldVelocity * inertia)

where inertia is a fractional value like 0.25

So to move the item a set distance, I need to calculate what the initial velocity should be (I know what all the other values are). I've been looking at Equations of motion (http://en.wikipedia.org/wiki/Equations_of_motion) but can't work out what the correct one for my problem is...

Any ideas? Thanks!

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