Answer:
78 N s
Explanation:
The impulse exerted on the ball is given by:
[tex]I = F \Delta t[/tex]
where
F is the magnitude of the force
[tex]\Delta t[/tex] is the duration of the collision
In this problem,
F = 39 N
[tex]\Delta t = 2 s[/tex]
Substituting,
[tex]I=(39 N)(2 s)= 78 Ns[/tex]
