While sitting on a tree branch 10 above the ground, you drop a chestnut. When the chestnut has fallen 2.8 , you throw a second chestnut straight down.
What initial speed must you give the second chestnut if they are both to reach the ground at the same time?
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This is not an answer to your question but I want to point out that no one can answer your question with units. 10 what? 2.8 what? I suggest you repost th question and include ALL of the question instead of part of it.
2 answers