One object is traveling northeast with a momentum of 12 kg-m/s, while a second object is traveling southwest on the same path as the first object with a momentum of 4 kg-m/s. When the two objects collide, they stick together. What is the momentum after their collision?

Question

northeast 8 kg-m/s
northeast 16 kg-m/s
southwest 8 kg-m/s
southwest 16 kg-m/s

Answer 1

Northeast 8 kg-m/s

To find the momentum after the collision, we can simply add the momenta of the two objects together since they stick together.

12 kg-m/s + 4 kg-m/s = 16 kg-m/s

So, the momentum after the collision is 16 kg-m/s in the northeast direction.