a girl riding a bicycle at 2.0 m/s throws a tennis ball horizontally forward at a speed of 1.0 m/s from a height of 1.5 m. at the same moment, a boy standing on the sidewalk drops a tennis ball straight down from a height of 1.5 m. what's the speed of the girl's ball when it hits the ground?
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a girl riding a bicycle at 2.0 m/s throws a tennis ball horizontally forward at a speed of 1.0 m/s f...
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