If Keiko and Raj are standing next to each other and Keiko throws her hat vertically upwards, will Raj, who is looking directly at Keiko, be able to see the hat for the entire duration of its flight? Provide a very brief response.
Raj will not be able to see the hat for the entire duration of its flight. When Keiko throws her hat upwards, it will initially move away from her, going up into the air. As it rises, there will be a point where the hat reaches its maximum height and begins to fall back down due to gravity. During the ascent and the descent, the hat will momentarily be out of Raj's line of sight because it will be above his field of view. Once the hat starts to descend, it will re-enter Raj's field of view as it falls back down to Keiko.