Elastic and Inelastic Collisions

  • Thread starter BMWPower06
  • Start date
  • #1
92
0

Homework Statement


Which of the following statements are true about elastic and inelastic collisions?
True False for elastic collisions, linear momentum is conserved but kinetic energy is not
True False for inelastic collisions, neither linear momentum nor kinetic energy is conserved
True False for inelastic collisions, both linear momentum and kinetic energy are conserved
True False for elastic collisions, linear momentum is not conserved but kinetic energy is
True False for elastic collisions, both linear momentum and kinetic energy are conserved
True False for inelastic collisions, linear momentum is conserved but kinetic energy is not



The Attempt at a Solution


Answers are in bold, basically this seems really simple i just cant figure out what im doing wrong. Im applying each one as if it were a car accident and thats what i got. Unfortunately the program doesnt tell me which ones are wrong, only that the answer is wrong, can anyone help me out?

Thanks.
 

Answers and Replies

  • #2
nrqed
Science Advisor
Homework Helper
Gold Member
3,737
279

Homework Statement


Which of the following statements are true about elastic and inelastic collisions?
True False for elastic collisions, linear momentum is conserved but kinetic energy is not
True False for inelastic collisions, neither linear momentum nor kinetic energy is conserved
True False for inelastic collisions, both linear momentum and kinetic energy are conserved
True False for elastic collisions, linear momentum is not conserved but kinetic energy is
True False for elastic collisions, both linear momentum and kinetic energy are conserved
True False for inelastic collisions, linear momentum is conserved but kinetic energy is not



The Attempt at a Solution


Answers are in bold, basically this seems really simple i just cant figure out what im doing wrong. Im applying each one as if it were a car accident and thats what i got. Unfortunately the program doesnt tell me which ones are wrong, only that the answer is wrong, can anyone help me out?

Thanks.
Are the bold answers your answers or the supposedly correct ones? because they don't look right to me.

In short: in ALL collisions the momentum is conserved. In eleastic collisions the kinetic energy is also conserved whereas in inelastic collisions the KE is not conserved (but the momentum is still conserved)
 
Last edited:

Related Threads on Elastic and Inelastic Collisions

  • Last Post
Replies
1
Views
674
Replies
5
Views
4K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
16
Views
2K
  • Last Post
Replies
4
Views
2K
Replies
1
Views
13K
Replies
1
Views
2K
Replies
14
Views
17K
Replies
16
Views
3K
  • Last Post
Replies
7
Views
2K
Top