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14 Mar 2011 - Pi Day
In this Newsletter:
1. Latest feedback - IntMath reduces math anxiety
2. Let's drop pi
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Me
Posted on 14 May 2005 10:08 PM
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Severity Index
We aim to describe the risk of head injury in a
crash by a number.
The first model used was the Severity
Index (SI).
It was calculated using
`SI=int_0^T{a(t)}^2.5dt`
where
T is the duration of the
deceleration during the crash
and
a(t) is the deceleration
at time t.
The index 2.5 was chosen for the head and other
indices were used for other parts of the body.
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