So here's a top view of the setup here We see that the bar is pivoted at this and and, ah, the bug is sits here and this is the table So the bug jumps off perpendicular to the paper point we call We say this is the direction, and they're few notations that we should remember Now we're saying that is defined as But ah, like years Thie is defined as the object bug and B for the bar, so N B corresponds to the mass of the bar Similarly, Emmy corresponds to the mass of the bug, and when the bug dumps