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A small object begins a free-fall from a height of ?=89.0 m at ?0=0 s ....

A small object begins a free-fall from a height of ?=89.0 m at ?0=0 s . After τ=2.60 s , a second small object is launched vertically up from the ground with an initial velocity of ?0=41.8 m/s . At what height from the ground will the two objects first meet?

answer = ?m

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