The projectile motion of a particle of mass 5 g is shown in the figure.

The initial velocity of the particle is $5 \sqrt{2} \mathrm{~ms}^{-1}$ and the air resistance is assumed to be negligible. The magnitude of the change in momentum between the points $A$ and $B$ is $x \times 10^{-2} \mathrm{kgms}^{-1}$. The value of x , to the nearest integer, is $\_\_\_\_$ .