Momentum with Time Calculation  

Force:
F = ΔM / ΔT
Time Change:
ΔT = ΔM /F
Where,
ΔM = Momentum Change,
F = Force,
ΔT = Time Change.
Example:
Calculate the Momentum change of an object when the applied force and time change of the object is known.
Force (F) = 50 N
Time Change (ΔT) = 25 s
Solution:
Apply formula:
ΔM = F* ΔT
ΔM = 50*25
ΔM = 1250 kgm/s
Momentum Change (ΔM) = 1250 kgm/s