Starting at $t=0$ a horizontal net force vec$(F)=(0\mathrm{.}280\frac{N}{s})that(i)+(-0\mathrm{.}45\frac{N}{s^2})t^2$hat$(j)$ is applied to a fish that has an initial momentum vec$(p)=-3(kg*\frac{m}{s})hat(i)+4(kg*\frac{m}{s})hat(j).$ What is the momentum of the fish at $t=1\mathrm{.}75s.$