Physics Game

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Physics Game

 
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  #1
Apr 11th, 2007
Ok, so here are the rules:

-Keep the questions very basic (PHYS 101 & 102); this is, afterall, a computer forum.
-Wait for confirmation that your answer is correct before posting your question.
-If 24 hours passes and still no confirmation, post a new question to keep the game going.


** Please follow the rules! **

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Question:

A car (mass = 1100kg) is traveling at 32 m/s when it collides head-on with a SUV (mass = 2500kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the SUV traveling?
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Re: Physics Game

 
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Apr 11th, 2007
That depends: did the passengers come to a halt too, or did one or more of them fly out the windshield?
Last edited by Rashakil Fol; Apr 11th, 2007 at 1:50 am.
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Re: Physics Game

 
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Apr 11th, 2007
Originally Posted by Rashakil Fol View Post
That depends: did the passengers come to a halt too, or did one or more of them fly out the windshield?
Does that even matter?
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Re: Physics Game

 
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  #4
Apr 11th, 2007
haha no..
Last edited by joshSCH; Apr 11th, 2007 at 2:11 am.
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Re: Physics Game

 
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Apr 11th, 2007
lol ok, just checking...
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Re: Physics Game

 
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  #6
Apr 11th, 2007
The answer, of course, is 14.08 m/s in the opposite direction of the first car.
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Re: Physics Game

 
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Apr 11th, 2007
Isn't that right? It better be.. I'm taking the Physics 2 "Mechanics w/ Calculus" AP test next month..
Last edited by joshSCH; Apr 11th, 2007 at 2:26 am.
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Re: Physics Game

 
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Apr 11th, 2007
You're right... I'm talking to Duki on the phone and he said you are correct.
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Re: Physics Game

 
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Apr 11th, 2007
yay! My question is:

The position vector of a particle of mass 3kg is given by r(vector)= 4i+3t^2j, where r is in meters and t is in seconds. Determine the angular momentum and torque acting on the particle about the origin.
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Re: Physics Game

 
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Apr 11th, 2007
Originally Posted by christina>you View Post
Does that even matter?
If you were worried about details, it would matter. The passengers were part of the energy system, and stopping them would require energy as well. If passengers from one vehicle were to continue flying through the windshield, it would change the amount of energy involved in the collision, and would change the result a bit.
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