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If the height of the building is 20.3 m , what must the initial speed be of the first ball if both are to hit the ground at the same time?
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If the height of the building is 20.3 m , what must the initial speed be of the first ball if both are to hit the ground at the same time?

User Kion
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both balls were dropped at the same time no matter how high. if they are dropped at the same height they will hit the ground at the same time.
User Grant Thomas
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