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skellator
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Coffs Harbour, NSW
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November 2004

Re: Physics problem.

Wed, 30 March 2005 06:35

RobertoX wrote on Wed, 30 March 2005 15:40

skellator wrote on Fri, 25 March 2005 20:22

FWDboy wrote on Fri, 25 March 2005 20:10

skellator wrote on Fri, 25 March 2005 19:10

50km/h of your car + - 50km/h of the other car (opposite direction) = 100km/h in your direction

Velocity is a vectors too.... and 50 + -50 = 0 .... not 100!!!

whoops! i meant, use the formula v1 + - v2
and v2 = -50 (opposite direction)
so v1 + - v2
= 50 + - -50
= 100

there that's better!

but i still cant see why you think like you do Confused

I'm talking about this
It's wrong because you have just chucked in a "-" in
"v1 + -v2" (it should be "v1 + v2")

... this is wrong for explaining what you are trying to explain because the sum of 2 vectors is simply that, the sum (with no fiddling around with putting in extra bits to make it say what you want it to say).

But anyway I think you are right, this thread has died O.o

ok, so now i know what you're talking about, but that equation is still correct for relative velocities, which is what i was talking about there
i think you might be thinking about adding vector components to get the final vector, as in calculating the initial velocity of a projectile, for instance? Confused

btw: DIE THREAD, DIE!! Laughing

[Updated on: Wed, 30 March 2005 06:41]

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Subject Poster Date

Read Message Physics problem. Squid Thu, 24 March 2005 03:43
Re: Physics problem. Corona RT142 Thu, 24 March 2005 03:46
Re: Physics problem. Squid Thu, 24 March 2005 03:50
Re: Physics problem. Corona RT142 Thu, 24 March 2005 03:50
Re: Physics problem. Norbie Thu, 24 March 2005 03:51
Read Message Re: Physics problem. Squid Thu, 24 March 2005 03:58
Re: Physics problem. Indi Thu, 24 March 2005 04:28
Re: Physics problem. STR8 2.8 Thu, 24 March 2005 04:32
Re: Physics problem. 86DRFT Thu, 24 March 2005 12:27
Re: Physics problem. Norbie Fri, 25 March 2005 07:14
Read Message Re: Physics problem. Intensevil Thu, 24 March 2005 04:25
Re: Physics problem. Corona RT142 Thu, 24 March 2005 04:31
Re: Physics problem. Squid Thu, 24 March 2005 04:34
Re: Physics problem. Indi Thu, 24 March 2005 04:42
Re: Physics problem. BlackMR2 Thu, 24 March 2005 04:32
Read Message Re: Physics problem. white86 Thu, 24 March 2005 04:44
Re: Physics problem. white86 Thu, 24 March 2005 04:51
Re: Physics problem. Mookie Thu, 24 March 2005 04:58
Re: Physics problem. bbaacchhyy Thu, 24 March 2005 05:08
Re: Physics problem. IRA11Y Thu, 24 March 2005 05:39
Read Message Re: Physics problem. Dust Thu, 24 March 2005 05:34
Re: Physics problem. Norbie Thu, 24 March 2005 05:39
Re: Physics problem. skellator Thu, 24 March 2005 05:57
Re: Physics problem. BlackMR2 Thu, 24 March 2005 05:58
Re: Physics problem. IRA11Y Thu, 24 March 2005 06:04
Read Message Re: Physics problem. IRA11Y Thu, 24 March 2005 06:07
Re: Physics problem. EnFlaMEd Thu, 24 March 2005 06:33
Re: Physics problem. SPRINTAH! Thu, 24 March 2005 06:30
Re: Physics problem. skellator Thu, 24 March 2005 06:43
Re: Physics problem. SPRINTAH! Thu, 24 March 2005 07:47
Read Message Re: Physics problem. IRA11Y Thu, 24 March 2005 08:13
Re: Physics problem. skellator Thu, 24 March 2005 08:57
Re: Physics problem. skellator Thu, 24 March 2005 06:33
Re: Physics problem. RWDboy Thu, 24 March 2005 06:42
Re: Physics problem. skellator Thu, 24 March 2005 06:54
Read Message Re: Physics problem. RWDboy Thu, 24 March 2005 06:49
Re: Physics problem. RWDboy Thu, 24 March 2005 07:20
Re: Physics problem. skellator Thu, 24 March 2005 07:44
Re: Physics problem. RWDboy Thu, 24 March 2005 13:42
Re: Physics problem. CrUZsida Thu, 24 March 2005 08:39
Read Message Re: Physics problem. CrUZsida Thu, 24 March 2005 08:59
Re: Physics problem. NeiGH Thu, 24 March 2005 09:51
Re: Physics problem. skellator Thu, 24 March 2005 10:01
Re: Physics problem. Alex120 Fri, 25 March 2005 11:49
Re: Physics problem. 86DRFT Thu, 24 March 2005 12:22
Read Message Re: Physics problem. skellator Fri, 25 March 2005 01:42
Re: Physics problem. RWDboy Fri, 25 March 2005 08:16
Re: Physics problem. b1gb3n Fri, 25 March 2005 02:37
Re: Physics problem. skellator Fri, 25 March 2005 08:40
Re: Physics problem. RWDboy Fri, 25 March 2005 09:10
Read Message Re: Physics problem. skellator Fri, 25 March 2005 09:22
Re: Physics problem. gabe Sat, 26 March 2005 00:46
Re: Physics problem. skellator Sat, 26 March 2005 00:58
Re: Physics problem. RobertoX Wed, 30 March 2005 05:40
Re: Physics problem. skellator Wed, 30 March 2005 06:35
Read Message Re: Physics problem. RWDboy Fri, 25 March 2005 10:42
Re: Physics problem. Alex120 Fri, 25 March 2005 11:45
Re: Physics problem. RWDboy Fri, 25 March 2005 12:40
Re: Physics problem. skellator Fri, 25 March 2005 22:50
Re: Physics problem. RWDboy Sat, 26 March 2005 01:47
Read Message Re: Physics problem. skellator Sat, 26 March 2005 02:16
Re: Physics problem. gabe Sat, 26 March 2005 02:59
Re: Physics problem. RWDboy Sat, 26 March 2005 01:53
Re: Physics problem. RWDboy Sat, 26 March 2005 03:21
Re: Physics problem. IRA11Y Sat, 26 March 2005 03:29
Read Message Re: Physics problem. Squid Tue, 29 March 2005 03:48
Re: Physics problem. RWDboy Sat, 26 March 2005 03:29
Re: Physics problem. RWDboy Sat, 26 March 2005 03:33
Re: Physics problem. skellator Sat, 26 March 2005 03:41
Re: Physics problem. RWDboy Sat, 26 March 2005 04:13
Read Message Re: Physics problem. skellator Sat, 26 March 2005 04:24
Re: Physics problem. RWDboy Sat, 26 March 2005 04:47
Re: Physics problem. IRA11Y Sat, 26 March 2005 05:04
Re: Physics problem. skellator Sat, 26 March 2005 05:26
Re: Physics problem. skellator Sat, 26 March 2005 06:06
Read Message Re: Physics problem. tom210 Sat, 26 March 2005 06:52
Re: Physics problem. skellator Sat, 26 March 2005 06:56
Re: Physics problem. RWDboy Sat, 26 March 2005 07:02
Re: Physics problem. skellator Sat, 26 March 2005 07:05
Re: Physics problem. tom210 Sat, 26 March 2005 07:19
Read Message Re: Physics problem. jackel Sat, 26 March 2005 07:23
Re: Physics problem. skellator Sat, 26 March 2005 07:39
Re: Physics problem. tom210 Sat, 26 March 2005 07:28
Re: Physics problem. Norbie Sat, 26 March 2005 09:47
Re: Physics problem. skellator Sat, 26 March 2005 10:10
Read Message Re: Physics problem. Norbie Sat, 26 March 2005 10:12
Re: Physics problem. skellator Sat, 26 March 2005 10:21
Re: Physics problem. EldarO Sat, 26 March 2005 11:37
Re: Physics problem. Norbie Sun, 27 March 2005 02:02
Re: Physics problem. EldarO Tue, 29 March 2005 16:41
Read Message Re: Physics problem. tom210 Sat, 26 March 2005 12:46
Re: Physics problem. RWDboy Sat, 26 March 2005 12:53
Re: Physics problem. skellator Sun, 27 March 2005 02:36
Re: Physics problem. RWDboy Sun, 27 March 2005 03:15
Re: Physics problem. RWDboy Tue, 29 March 2005 04:41
Read Message Re: Physics problem. skellator Tue, 29 March 2005 05:50
Re: Physics problem. RWDboy Tue, 29 March 2005 12:07
Re: Physics problem. skellator Tue, 29 March 2005 21:05
Re: Physics problem. 79rollaboy Tue, 29 March 2005 21:20
Re: Physics problem. RobertoX Wed, 30 March 2005 00:19
Read Message Re: Physics problem. RWDboy Wed, 30 March 2005 00:42
Re: Physics problem. skellator Wed, 30 March 2005 04:40
Re: Physics problem. RobertoX Wed, 30 March 2005 04:49
Re: Physics problem. skellator Wed, 30 March 2005 04:57
Re: Physics problem. RWDboy Wed, 30 March 2005 13:47

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