Two birds collide in midair. Before the collision, their combined momentum was 88 kg•m/s to the west. What is their combined momentum after the collision?

Question

Two birds collide in midair. Before the collision, their combined momentum was 88 kg•m/s to the west. What is their combined momentum after the collision?
A.	88 kg•m/s east
B.	88 g•m/s north
C.	88 kg•m/s down
D.	88 kg•m/s west

Damon · Accepted Answer

NEWTON'S FIRST LAW !!!!!!!!!!! There is NO external force on this system therefore There is NO CHANGE of momentum. Never ever forget that !!! D. !!!!!!

Damon · Answer

That did it !

bobpursley · Answer

Here in texas, they often fall to the ground after collision... :)

Damon · Answer

LOL, it was about the horizontal plane, but yes that could happen