The force vs. time graphs for two collisions are shown. Which collision has the largest impulse?

The force vs. time graphs for two collisions are shown. Which collision has the largest impulse?
image

Answer:

P = F.dt

  1. 4000 x 0.5 = 2000 N.s

  2. 2000 x 1 = 2000 N.s

E) Impulses are same