Jump to content

ZZ's Blog

Sign in to follow this  
  • entries
    31
  • comments
    9
  • views
    3,648

Rear Ending Someone

ZZ

359 views

I realize that when someone refers to a vague scenario about a "friend" who did something, people often jump to conclusions and assume they are sharing an embarrassing personal anecdote. However that does not apply at all here. Recently, I was in a little fender bender with one of my friends (his/her identity remaining undisclosed) and it was unfortunately a rear end collision. I'm not sure if I could've been in a scenario that screamed momentum any more that this one.

If we treat this like an inelsatic collision (energy is not conserved since there is definitely energy lost to heat/friction) we know that M1V1 + M2V2 = (M1 + M2)V' assuming that they stick together for a short amount of time before braking. If we assume that the mass of our car was 2 tons (1814.37 kg) and we were traveling at about 15 mph (6.7 m/s) and that the other car weighed about 1.2 tons (1088.62 kg) and was at rest, then as a system the two would have a final velocity of about 4.2 m/s (9.4 mph). 

When all was said and done the experience of an accident obviously was not fun, however it was a pleasure to blog about.

(p.s. the collision below was not even close to what happened but I thought it looked pretty dumb)

tumblr_migimtTaLr1qlpk58o1_r1_400.gif



0 Comments


Recommended Comments

There are no comments to display.

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×
×
  • Create New...