(Answered) A boy throws a ball vertically up wards with a velocity of

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A boy throws a ball vertically up wards with a velocity of 25 m/s while he was standing on a cliff on the way down it just misses the thrower and falls down on the ground if the height of the building was 49 m. Determine

a) the total time of flight?

b) the velocity which with it reaches the ground?

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