Question: A ball is thrown vertically into the air at 36 m/s. After 3 sec., another ball is thrown vertically, the initial velocity the second

A ball is thrown vertically into the air at 36 m/s. After

A ball is thrown vertically into the air at 36 m/s. After 3 sec., another ball is thrown vertically, the initial velocity the second ball have to pass the first ball must at 30 meter from the ground (in m/s) is

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