If i looked at this correctly i believe the answer would be c
This is a physics problem.
The law is that the momentum is preserved: total momentum before collsion = total momentum after collision
Momentum before collision = 80 kg.m/s - 100 kg.m/s = -20 kg.m/s
Then answer is b. - 20 kg.m/s
I'm pretty sure it's
3.648 x 10(exponent 3)
