A stone is allowed to fall from the top of a tower \( 100 \mathrm{~m} \) high and at the same ti...

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A stone is allowed to fall from the top of a tower \( 100 \mathrm{~m} \) high and at the same time another stone is projected vertically upwards from the ground with a velocity of \( 25 \mathrm{~m} / \mathrm{s} \). Calculate when and where the two stones will meet.
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