Jump to content
Sign in to follow this  
Guest svf27

Car Crash WebQuest Challenge

Recommended Posts

Guest svf27

In this challenge a 3000kg SUV hit an Outback Wagon (2000kg) while it was stopped at a stop sign. The SUV skidded 2m while the Outback skidded 24m after being hit. The velocity of the SUV immediately following the collision was 2.83 m/s. The velocity of the wagon immediately following the collision was 12 m/s. We determined these answers by using kinematic equations because we knew the final velocity, acceleration, and distance. Using the equation Vi^2=Vf^2-2ad we were able to solve for Vi to determine the velocity immediately following the collision.

Next we determined the momentum immediately following the collision by using P=MV. The momentum of the SUV immediately after the collision was 8490 kg*m/s. The momentum of the wagon immediately after the collision was 24000 kg*m/s.

The momentum of the wagon immediately before the collision was 0 because it was stopped at the stop sign. The momentum of the SUV immediately before the collision was 32490 kg*m/s because momentum must be conserved before and after the collision; so you add the momentums of the wagon and SUV after the collision to determine the momentum before.

The speed of the wagon before the collision is 0 because it is stopped at the stop sign. The speed of the SUV can be determined with the equation V=P/M which gave us a result of 10.83 m/s which is can be converted to 38.98 km/hr. Therefore the SUV was speeding when it hit the wagon.

Developed by: Shauna Iryna Alec

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   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.

Sign in to follow this  

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...