How long does the chestnut take to hit the ground?
While sitting on a tree branch 8.0 m above the ground, you drop a chestnut. When the chestnut has fallen 2.0 m, 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?
Please help Ive tried using different position questions but the answer just won’t come out. I’m using Webassign and its incredibly frustrating right now
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One comment a "How long does the chestnut take to hit the ground?"
Distance= V0(t)+1/2a(t)^2
find the time it takes for the first acorn to reach the ground after it has fallen 2m you find the time so far with t=sqrt(2d/g)=.639…sec. and the total time t=1.278… the difference is thus .639…sec. the second acorn must travel the whole 8m in this time so 8=V0(.639s)+.5×9.8(.639)^2. solving for V0, we get 9.388m/s. I hope this helps. you may want to check my math but the formulas are correct!
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