Answer:
zero and it will be the same for each stakers.
Step-by-step explanation:
From the given information
If we apply the conservation of linear momentum, we will realize that the total momentum before the two ice stakers pushed themselves is equal and it is the same as their momentum after they pushed themselves.
Similarly, before pushing each other, they are both at rest. This implies that their total momentum will be zero before pushing.
SO, if their total momentum before pushing is zero, then after pushing their momentum also will be zero.