Question

Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after they collide? A. 0 kg m/s B. 50 kg m/s C. 100 kg m/s D. 200 kg m/s Is the answer D?

Answer 1

No, momentum is conserved so:
momentum before=momentum after
it is C. 100 kg m/s