Physics, 13.11.2020 19:50 wizewolf

A child throws a baseball straight up into the air and it takes 4.5 seconds to reach maximum height. What is the total time of flight for the baseball after being thrown and the baseball player catching it? What are the known and unknown variables? And what equation must be used?

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A child throws a baseball straight up into the air and it takes 4.5 seconds to reach maximum height....