Author | Topic |
Location: Sydney
Registered: January 2003
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Re: Physics problem.
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Thu, 24 March 2005 07:47
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skellator wrote on Thu, 24 March 2005 17:43
no, no, no
if you [b | do[/b] actually use common sense, you will find that, firstly, hitting a stationary car (assuming it is the same as yours) at 50km/h will do much less damage than colliding with the same car, where you are both doing 50km/h, and secondly, another car's crumple zone will actually affect the force exerted on you, as the object you're hitting will absorb some of the energy into crumpling the metal
man, this stuff is all so obvious to me, i cant see how some of you guys are getting it so wrong!
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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.
When you hit another car, yes, there is crumpling of metal, but the forces exerted on each car are the same as hitting a wall. whether the forces between the two cars interact or not is rather irrelevant because the net force will always be same.
One car hits a wall with X amount of energy, most of this energy goes into crumpling Y amount of metal,
TWO CARS: each car has X amount of energy, making the ttotal energy 2X, this energy crumples 2Y amount of Metal (seeing as there are 2 cars). making this the same as the single car scenario.
twice the energy, twice the metal.
it would seem that it may not be obvious to you
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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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