How can i get scratches and stains out of my white board.?
that looks right to me pm * v *upper case is the girl, lowecase is the gloves M * V m * v (m * V)/M V
Because..it's not real !!!!! Totally for entertainment value only.
Conservation of momentum means that v-girl * M + v-glove * m 0 so v-girl * M - v-glove * m v-girl v-glove * m / M
