It looks like a refractor.
Well, st first we should find <span>initial momentum for the first person represented in the task which definitely must be :
</span>

And then we find the final one :

Then equate them together :
So we can get the velocity, which is

In that way, according to the main rules of <span>conservation of momentum you can easily find the solution for the second person.
Regards!</span>
Visceral epithelial cells
Answer: B
Explanation: i learned it last year
Answer:
I don't now sorry HHHAHAH GOOD LUCK