Answer:
1.8 Kg.m/s
Explanation:
Change in momentum is given by
[tex]\triangle p= m(v-u)[/tex] where [tex]\triangle p[/tex] is the change in momentum, m is the mass of the ball, v is the final velocity of the ball and u is the initial velocity of the ball.
Substituting [tex]6\times 10^{-2} Kg[/tex] for m, -18 m/s for v since it's in opposite direction and 12 m/s for u then
[tex]\triangle p[/tex][tex]\p=6\times 10^{-2} Kg (-18 m/s-12 m/s)= -1.8 Kg.m/s[/tex]
