Which of the following are units of momentum?

  • Thread starter mettjl03
  • Start date
  • #1
mettjl03
3
0
A Typo?????

Homework Statement



The question is: Which of the following are units of momentum?
The possible answers are: A. N x m B. kg x s/m C. kg x m^2/s D. J x s/m E. kg x m^2/s^2

Homework Equations





The Attempt at a Solution



Is there a typo on this homework question? I thought that the units for momentum were kg x m/s, N x s, or kN x s. Am I wrong about this? Someone please help I think I'm going crazy lol.
 

Answers and Replies

  • #2
Doc Al
Mentor
45,410
1,844


There's no typo--one of the answers is correct. Check each one carefully.
 
  • #3
willem2
2,085
346


What is a Joule in N, m, s
 
  • #4
mettjl03
3
0


A joule is a unit. I dont understand what your asking me.
 
  • #5
Doc Al
Mentor
45,410
1,844


A joule is a unit. I dont understand what your asking me.
A Joule is a unit of what? What other units can be combined to equal a Joule?

Example: A Newton is a unit of Force, but it's equivalent to kg-m/s^2. (Since F = ma.)
 
  • #6
mettjl03
3
0


Well one Joule = 1 N x m... which is 1 kg x m^2/s^2 (i think). So is that the right answer? Im lost
 
  • #7
Doc Al
Mentor
45,410
1,844


Well one Joule = 1 N x m... which is 1 kg x m^2/s^2 (i think).
Good.
So is that the right answer? Im lost
Go through each potential answer in turn and do a similar analysis in terms of kg, m, and s. Then you can compare its units with momentum units.
 

Suggested for: Which of the following are units of momentum?

Replies
4
Views
15K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
3
Views
4K
Replies
6
Views
7K
Replies
5
Views
28K
Replies
4
Views
2K
Replies
13
Views
2K
  • Last Post
Replies
4
Views
2K
Replies
2
Views
2K
Top