Answer:
Equal and opposite
Explanation:
Momentum is equal to mass times velocity.
p = mv
Both objects have the same speed but opposite directions, so the velocities are opposite.
v₁ = v
v₂ = -v
Both objects have the same mass.
m₁ = m₂ = m
Therefore, both objects have equal and opposite momentums.
p₁ = mv
p₂ = -mv
p₁ = -p₂
