No matter what, what must be true?
The total momentum CAN change
The total momentum CANNOT change
Total momentum can change for brief periods of time
Other:
Vote
View Results
See this poll on:
https://poll.fm/6673964/embed
Leave a Comment
Your Name
Please enter your name.
Email Address
Please enter your email address.
Your Website (optional)
Your Comment
Please enter a comment.
0
/4000 chars
Submit Comment
Leave a Comment