Your friend's mass is 65kg. If she jumps off a 110-cm high table, how far does the Earth move toward her as she falls? A 2.4kg object is moving along the x-axis at 1.55m/s. As it passes the origin, two forces F1 and F2 are applied, both in the y direction (plus or minus). The forces are applied for 2.85s, after which the onject is at x=4.42m, y=11.0m. If F1=18JN, What's F2?