a physics teacher is walking on a sidewalk at a constant velocity toward a building with a two story window where a group of young physics students are gathered. the students make some calculations to determine if a water balloon dropped at a certain time will hit the teachers head. the teacher is 1.5 meters tall and will reach the window area in 1.8 seconds from the time of the drop. if the balloon is dropped from a height of 9 meters, will the water balloon hit the physics teacher?
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