Answer:
10 kg-m/s
Explanation:
It is given that,
Before the collision, each car (red+yellow) had a momentum of 5 kg.m/s.
After the collision, the yellow car now has a momentum of 0.
We need to find the momentum of the red car after the collision. The conservation of momentum will be applied in this problem. A/c to this law,
Momentum before collision = Momentum after collision
[tex]p_r+p_y=p'_r+p'_y[/tex]
[tex]5+5=0+p'_r\\\\p'_r=10\ kg-m/s[/tex]
Hence, the momentum of the red car after the collision is 10 kg-m/s.