Find the position and velocity vectors if the acceleration is

and the initial position and velocity vectors are and respectively.

Any help is appriciated, bla bla..

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- Mar 28th 2010, 06:39 AMLafexlos[SOLVED] Position and Velocity vector??
Find the position and velocity vectors if the acceleration is

and the initial position and velocity vectors are and respectively.

Any help is appriciated, bla bla.. - Mar 28th 2010, 06:42 AMcraig
- Mar 28th 2010, 07:38 AMLafexlos
Unfortunately, couldn't do anything on it.

It looks gonna take integral of acceleration and put zero and gonna find velocity but i can not take the integral of vector. :S

is it same as normal integral and put i , j , k? or does it exist something like integral of vector? - Mar 28th 2010, 07:41 AMcraig
- Mar 28th 2010, 07:42 AMskeeter
- Mar 28th 2010, 07:57 AMLafexlos
So,

i think, now i should put zeros instead of but when put zero for component i get but instant velocity has component. Does it mean that has component?

Bah. Really confused but understand the logic. =) Thx for helps. - Mar 28th 2010, 08:09 AMHallsofIvy
You have forgotten the "constants of integration" for each component.

- Mar 28th 2010, 08:12 AMLafexlos
Ok. I see.

So it'll be instead of . Now everything is complete.

Thx again for your helps.