Answer:
A) I = 20 N s
, Â B) Â F = 7.92 N
Explanation:
A) Â The momentum is
I = F Δt Â
calculate Â
I = 50 0.40 Â
I = 20 N s
B) The momentum is related to the change of the moment of the system Â
I = Δp Â
F Δt = m  [tex]v_{f}[/tex] - m v₀
in this case we must assume that the initial velocity is very small, vo = 0 Â
F = m v_{f} / Δt Â
calculate Â
F = 0.11 36 / 0.5 Â
F = 7.92 N