Steph is carrying a cup of water. He doesn’t see a wrinkle in the floor rug and he trips. Steph manages not to fall or drop the cup, but the water spills over the side of the cup and onto the floor What is the unbalanced force

What keeps moving

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?