Question

in a closed system, how does an increase in mass change the velocity of an impacted object? (1 point)
velocity may increase or decrease depending on force.
velocity decreases to conserve momentum.
velocity may increase or decrease depending on acceleration.
velocity increases to conserve momentum.

Explanation:

In a closed - system, momentum ($p = mv$) is conserved. If mass ($m$) increases, to keep the momentum constant, velocity ($v$) must decrease.

Answer:

Velocity decreases to conserve momentum.