Answer:
The correct answer is that the impulse equals 78 N*s.
Explanation:
To solve this problem, we must first remember the meaning of impulse and its equation.
Using our knowledge that impulse = force * time, we can substitute in our given values and solve easily.
Impulse = force * time
Impulse = 39 N * 2 s
Impulse = 78 N*s
Therefore, your answer is that the impulse equals 78 N*s.