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Message: <blockquote data-quote="Castellan" data-source="post: 153962" data-attributes="member: 639">I think a lot of people might have missed the URL in my original post. Go to <a href="http://www.farmingdale.edu/~kramerpr/teaser/head-on.html" target="_blank">http://www.farmingdale.edu/~kramerpr/teaser/head-on.html</a>  abd check out the well-written explanation why the CoC rules are wrong.Ultimately, using equations in a game is a bad idea. The end result is that you should probably either (A) add the two speeds together and divide by two (even though this is technically wrong), or (B) treat the head-on collision as if both cars hit a brick wall (i.e. if car A is traveling at 50 MPH, and car B is traveling at 70 MPH, car A takes the appropriate damage for a 50 MPH collision, and car B takes the appropriate damage for a 70 MPH collision.Neither of those solutions is correct in the Real World, but adding the speed together and applying the damage to both parties is grossly incorrect, and unfair to the imaginary passengers therein! <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f600.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":D" title="Big grin    :D"  data-smilie="8"data-shortname=":D" /> Therefore, I'd probably use one of the two above adjustments.Hmmm... Any physicists want to get together for a Physics CoC game? I can see it now:GM: Okay, Phil, you hit the cultists with your 1984 Mustang at 43 MPH, coming off of the entrance ramp onto the highway. Let's see, that looks like a 15-degree angle to me --.Phil: No way! That's easily a 17.5-degree angle, and don't forget that the on-ramp has a downward grade of 1.2-percent! Oh, and Lisa's character ate that burrito just before we got into this chase, so we need to take into account her weight difference, too!GM: Okay! Okay! *punches scientific calculator a few times* Now the cultists are in a 1996 Ford Bronco, going 65 MPH, and there's a light North-Northwest crosswind of about 5 MPH. The road is wet because of a slight drizzle, and it's 4:30 PM local time, and 53 degrees Fahrenheit.Phil: Okay! I slam into the rear quarter-panel of the car while breaking hard-left so I can send them into a spin!<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f644.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":rolleyes:" title="Roll eyes    :rolleyes:"  data-smilie="11"data-shortname=":rolleyes:" /> Yeesh... I need a life.</blockquote>

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