Is my teacher's work for collisions problem correct?

  • #1
265
2

Homework Statement


The problem and solution is here: http://nebula.deanza.edu/~newton/4A/4AE2P3Winter10.jpg .

Homework Equations



The equations are in that link.

The Attempt at a Solution


My question is how do you know that the final velocities of both masses are equal to each other? wouldnt that ONLY be hte case if the collision was perfectly inelastic (which he didnt mention).
 

Answers and Replies

  • #2
haruspex
Science Advisor
Homework Helper
Insights Author
Gold Member
33,743
5,543
how do you know that the final velocities of both masses are equal to each other? wouldnt that ONLY be hte case if the collision was perfectly inelastic (which he didnt mention).
I agree.
 
  • #3
265
2
I agree.
alright, and in this case it would be simply impossible for the masses to have the same velocity.... because the first mass (the mass on the left) would move left after the collision correct?
 
  • #4
265
2
alright, and in this case it would be simply impossible for the masses to have the same velocity.... because the first mass (the mass on the left) would move left after the collision correct?
nevermind scratch that.... that would only happen if it is an elastic collision.... this may or may not happen in an inelastic collision
 

Related Threads on Is my teacher's work for collisions problem correct?

  • Last Post
Replies
5
Views
1K
Replies
8
Views
2K
Replies
2
Views
1K
Replies
2
Views
1K
Replies
7
Views
1K
Replies
1
Views
3K
  • Last Post
Replies
3
Views
6K
Replies
5
Views
487
Replies
1
Views
854
Top