anonymous
  • anonymous
Hi I need some help please. If an object is given an initial velocity of v0 feet per second from a height of s0 feet, then it's height s after t seconds is given by the formula S= -16t^(2) + v[0]t + s[0]. If a pine cone falls from the top of a 112 foot tree then how many seconds does it take to reach the earth? Round the answer to one decimal place
Mathematics
jamiebookeater
  • jamiebookeater
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amistre64
  • amistre64
initial velocity is 0, unless that was a powerful squirrel.... and initial height is 112; just gotta plug and chug it
amistre64
  • amistre64
112.... 1,112; 4, 28,..4.4.7 4 sqrt(7) ------- = sqrt(7)/8 right? 32
amistre64
  • amistre64
0.3 secs i think

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amistre64
  • amistre64
that doesnt look right :)
amistre64
  • amistre64
16t^2 - 112 16(t^2-7)=0 t = sqrt(7) then.... lets try it :) -16(7) +112 = 0
amistre64
  • amistre64
thats better
amistre64
  • amistre64
2.64...
anonymous
  • anonymous
Thanks
angela210793
  • angela210793
This is physics....(and math) i don't like it....
amistre64
  • amistre64
without physics; where would we be ;) (olivia newton john)
angela210793
  • angela210793
I'd b still in Albania i know this 4 sure :P:P:P...
amistre64
  • amistre64
Albania eh... is that were albinos come from? no offense
angela210793
  • angela210793
Huh? nooo..Albinos is deficiency of vitamin D(if i'm not wrong) Albania is in EUROPE!!! (south-east) close to Greece :P:P:P:P:P
angela210793
  • angela210793
While i was eating dinner i was thinking abt albinos and i understood that i have made a terrible mistake and i am sorry....:(:(:( that is caused because of deficiency of melanin not vit.D :)

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