motion question

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kriptik

Victorian
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Posts: 130
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motion question

« on: January 03, 2010, 03:13:01 pm »

0

hey guys i was stuck on this question,

just dont get it,

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2009
-It applications [46]
2010
English [28] Methods (CAS) [43] Further maths [50]
Physics [41] Chemistry [38]
ATAR: 94.35

2011

Akirus

Guest

Re: motion question

« Reply #1 on: January 03, 2010, 03:28:45 pm »

0

Not sure if it's correct, but here's what I got:

$x=400m$

$u=0ms^{-1}$

$v=22.222ms^{-1}$

$t=?$

$x=\frac{1}{2}(u+v)t$

$400=\frac{1}{2}(22.222)t$

$<br />400=11.111t$

$t=36s$

Then...

$v=22.222ms^{-1}$

$d=x=?$

$t=36s$

$v=\frac{d}{t}$

$22.222=\frac{x}{36}$

$x=799.999$

$x=800m$

« Last Edit: January 03, 2010, 04:51:18 pm by Akirus »

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kriptik

Victorian
Trendsetter
Posts: 130
Respect: +1

Re: motion question

« Reply #2 on: January 03, 2010, 03:59:30 pm »

0

yerp thats right thanks

Logged

2009
-It applications [46]
2010
English [28] Methods (CAS) [43] Further maths [50]
Physics [41] Chemistry [38]
ATAR: 94.35

2011

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