Author | Topic |
Location: Coffs Harbour, NSW
Registered: November 2004
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Re: Physics problem.
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Thu, 24 March 2005 08:57
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Quote: | What does hitting a stationary car have to do with anything???
Of course the "damage" will be less when hitting a stationary car, you will be pushing the other car along, coming to a steady stop.
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ah, sorry, i thought you said hitting a car at 50km/h, but you actually said a brick wall. but in that less damage bit, i was assuming the car would stay put and not crumple, much like the brick wall...hmmm...
anyway, this is the way i like to put it:
a car travelling towards a concrete wall at 100km/h has a velocity, relative to the wall, of 100km/h
a car travelling towards another car, both doing 50km/h, also has a velocity, relative to the other car, of 100km/h
think about it, if you're standing next to a 50km/h road, you see cars go past at a certain, apparent speed
if you're driving along a 50km/h road (at 50km/h, of course, cos you're a sensible driver), you see other cars going the other way at what seems to be a faster speed than when you watched them from a stationary position
btw, cruzsida, put it this way, if two cars collided, both travelling 50km/h, would it cause the same amount of collective damage as if one car hit a concrete wall at 100km/h?
edit: squid, do you want to have a say in this at all? i mean it is your thread
[Updated on: Thu, 24 March 2005 08:59]
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| Subject | Poster | Date |
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Physics problem.
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Squid | Thu, 24 March 2005 03:43 |
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Re: Physics problem.
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Corona RT142 | Thu, 24 March 2005 03:46 |
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Re: Physics problem.
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Squid | Thu, 24 March 2005 03:50 |
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Re: Physics problem.
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Corona RT142 | Thu, 24 March 2005 03:50 |
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Re: Physics problem.
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Norbie | Thu, 24 March 2005 03:51 |
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Re: Physics problem.
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Squid | Thu, 24 March 2005 03:58 |
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Re: Physics problem.
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Indi | Thu, 24 March 2005 04:28 |
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Re: Physics problem.
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STR8 2.8 | Thu, 24 March 2005 04:32 |
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Re: Physics problem.
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86DRFT | Thu, 24 March 2005 12:27 |
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Re: Physics problem.
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Norbie | Fri, 25 March 2005 07:14 |
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Re: Physics problem.
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Intensevil | Thu, 24 March 2005 04:25 |
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Re: Physics problem.
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Corona RT142 | Thu, 24 March 2005 04:31 |
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Re: Physics problem.
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Squid | Thu, 24 March 2005 04:34 |
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Re: Physics problem.
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Indi | Thu, 24 March 2005 04:42 |
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Re: Physics problem.
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BlackMR2 | Thu, 24 March 2005 04:32 |
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Re: Physics problem.
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white86 | Thu, 24 March 2005 04:44 |
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Re: Physics problem.
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white86 | Thu, 24 March 2005 04:51 |
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Re: Physics problem.
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Mookie | Thu, 24 March 2005 04:58 |
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Re: Physics problem.
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bbaacchhyy | Thu, 24 March 2005 05:08 |
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Re: Physics problem.
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IRA11Y | Thu, 24 March 2005 05:39 |
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Re: Physics problem.
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Dust | Thu, 24 March 2005 05:34 |
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Re: Physics problem.
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Norbie | Thu, 24 March 2005 05:39 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 05:57 |
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Re: Physics problem.
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BlackMR2 | Thu, 24 March 2005 05:58 |
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Re: Physics problem.
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IRA11Y | Thu, 24 March 2005 06:04 |
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Re: Physics problem.
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IRA11Y | Thu, 24 March 2005 06:07 |
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Re: Physics problem.
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EnFlaMEd | Thu, 24 March 2005 06:33 |
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Re: Physics problem.
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SPRINTAH! | Thu, 24 March 2005 06:30 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 06:43 |
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Re: Physics problem.
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SPRINTAH! | Thu, 24 March 2005 07:47 |
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Re: Physics problem.
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IRA11Y | Thu, 24 March 2005 08:13 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 08:57 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 06:33 |
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Re: Physics problem.
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RWDboy | Thu, 24 March 2005 06:42 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 06:54 |
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Re: Physics problem.
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RWDboy | Thu, 24 March 2005 06:49 |
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Re: Physics problem.
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RWDboy | Thu, 24 March 2005 07:20 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 07:44 |
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Re: Physics problem.
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RWDboy | Thu, 24 March 2005 13:42 |
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Re: Physics problem.
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CrUZsida | Thu, 24 March 2005 08:39 |
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Re: Physics problem.
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CrUZsida | Thu, 24 March 2005 08:59 |
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Re: Physics problem.
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NeiGH | Thu, 24 March 2005 09:51 |
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Re: Physics problem.
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skellator | Thu, 24 March 2005 10:01 |
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Re: Physics problem.
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Alex120 | Fri, 25 March 2005 11:49 |
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Re: Physics problem.
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86DRFT | Thu, 24 March 2005 12:22 |
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Re: Physics problem.
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skellator | Fri, 25 March 2005 01:42 |
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Re: Physics problem.
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RWDboy | Fri, 25 March 2005 08:16 |
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Re: Physics problem.
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b1gb3n | Fri, 25 March 2005 02:37 |
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Re: Physics problem.
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skellator | Fri, 25 March 2005 08:40 |
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Re: Physics problem.
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RWDboy | Fri, 25 March 2005 09:10 |
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Re: Physics problem.
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skellator | Fri, 25 March 2005 09:22 |
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Re: Physics problem.
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gabe | Sat, 26 March 2005 00:46 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 00:58 |
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Re: Physics problem.
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RobertoX | Wed, 30 March 2005 05:40 |
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Re: Physics problem.
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skellator | Wed, 30 March 2005 06:35 |
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Re: Physics problem.
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RWDboy | Fri, 25 March 2005 10:42 |
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Re: Physics problem.
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Alex120 | Fri, 25 March 2005 11:45 |
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Re: Physics problem.
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RWDboy | Fri, 25 March 2005 12:40 |
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Re: Physics problem.
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skellator | Fri, 25 March 2005 22:50 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 01:47 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 02:16 |
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Re: Physics problem.
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gabe | Sat, 26 March 2005 02:59 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 01:53 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 03:21 |
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Re: Physics problem.
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IRA11Y | Sat, 26 March 2005 03:29 |
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Re: Physics problem.
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Squid | Tue, 29 March 2005 03:48 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 03:29 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 03:33 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 03:41 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 04:13 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 04:24 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 04:47 |
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Re: Physics problem.
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IRA11Y | Sat, 26 March 2005 05:04 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 05:26 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 06:06 |
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Re: Physics problem.
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tom210 | Sat, 26 March 2005 06:52 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 06:56 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 07:02 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 07:05 |
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Re: Physics problem.
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tom210 | Sat, 26 March 2005 07:19 |
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Re: Physics problem.
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jackel | Sat, 26 March 2005 07:23 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 07:39 |
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Re: Physics problem.
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tom210 | Sat, 26 March 2005 07:28 |
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Re: Physics problem.
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Norbie | Sat, 26 March 2005 09:47 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 10:10 |
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Re: Physics problem.
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Norbie | Sat, 26 March 2005 10:12 |
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Re: Physics problem.
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skellator | Sat, 26 March 2005 10:21 |
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Re: Physics problem.
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EldarO | Sat, 26 March 2005 11:37 |
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Re: Physics problem.
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Norbie | Sun, 27 March 2005 02:02 |
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Re: Physics problem.
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EldarO | Tue, 29 March 2005 16:41 |
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Re: Physics problem.
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tom210 | Sat, 26 March 2005 12:46 |
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Re: Physics problem.
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RWDboy | Sat, 26 March 2005 12:53 |
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Re: Physics problem.
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skellator | Sun, 27 March 2005 02:36 |
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Re: Physics problem.
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RWDboy | Sun, 27 March 2005 03:15 |
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Re: Physics problem.
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RWDboy | Tue, 29 March 2005 04:41 |
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Re: Physics problem.
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skellator | Tue, 29 March 2005 05:50 |
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Re: Physics problem.
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RWDboy | Tue, 29 March 2005 12:07 |
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Re: Physics problem.
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skellator | Tue, 29 March 2005 21:05 |
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Re: Physics problem.
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79rollaboy | Tue, 29 March 2005 21:20 |
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Re: Physics problem.
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RobertoX | Wed, 30 March 2005 00:19 |
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Re: Physics problem.
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RWDboy | Wed, 30 March 2005 00:42 |
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Re: Physics problem.
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skellator | Wed, 30 March 2005 04:40 |
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Re: Physics problem.
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RobertoX | Wed, 30 March 2005 04:49 |
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Re: Physics problem.
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skellator | Wed, 30 March 2005 04:57 |
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Re: Physics problem.
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RWDboy | Wed, 30 March 2005 13:47 |
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