Energy in accident equation

  • Thread starter Probie
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  • #1
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Can someone please tell me what I am suppose to do with c1c2 and 2b in the following equation. I do not know if I am to mulitply, divide, subtract or add.

E= L * (( a /2 ) * ( c1 + c2) + b / 6 * ( c1² + c1c2 + c2² ) + ( a² / 2b))

Where: L = 1
a=375
b=45
c1=.33
c2=.33

My answer comes out to 62.205 but I do not know if this is right because I do not know what this c1c2 and 2b means.
Thanks very much.
 

Answers and Replies

  • #2
cristo
Staff Emeritus
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c1c2 means c1 multiplied by c2. 2b means 2 multiplied by b. Is that what you were after?
 
  • #3
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Yes, that is exactly what I needed to know. It sure made a difference in my answer.......now I come up with E = 1726.66675 I sure do hope this is right. I am not a student and there is no way to check my findings.
Cristo....thanks very much for the prompt reply, this is very important to me....thank you.
 
  • #4
cristo
Staff Emeritus
Science Advisor
8,107
73
Yes, that is exactly what I needed to know. It sure made a difference in my answer.......now I come up with E = 1726.66675 I sure do hope this is right. I am not a student and there is no way to check my findings.
Cristo....thanks very much for the prompt reply, this is very important to me....thank you.
You're welcome. In general, whenever you see a combination "ab", it always means a multiplied by b; that is, for this sort of maths, the multiplication operator is the only one to be omitted in this way.
 
  • #5
24
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Thanks again cristo.....this is a lesson I will never forget.......thank you very much. ~ Probie
 

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