A ball is dropped from a bridge 122.5 meters above a river. After the ball has been falling for two seconds, a second half is thrown straight down after it. What must its initial velocity be so that both hit the water at the same time.
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A ball is dropped from a bridge 122.5 meters above a river. After the ball has been falling for two seconds, a second half is thrown straight down after it. What must its initial velocity be so that both hit the water at the same time.
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