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anonymous

  • 5 years ago

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

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  1. amistre64
    • 5 years ago
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    initial velocity is 0, unless that was a powerful squirrel.... and initial height is 112; just gotta plug and chug it

  2. amistre64
    • 5 years ago
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    112.... 1,112; 4, 28,..4.4.7 4 sqrt(7) ------- = sqrt(7)/8 right? 32

  3. amistre64
    • 5 years ago
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    0.3 secs i think

  4. amistre64
    • 5 years ago
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    that doesnt look right :)

  5. amistre64
    • 5 years ago
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    16t^2 - 112 16(t^2-7)=0 t = sqrt(7) then.... lets try it :) -16(7) +112 = 0

  6. amistre64
    • 5 years ago
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    thats better

  7. amistre64
    • 5 years ago
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    2.64...

  8. anonymous
    • 5 years ago
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    Thanks

  9. angela210793
    • 5 years ago
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    This is physics....(and math) i don't like it....

  10. amistre64
    • 5 years ago
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    without physics; where would we be ;) (olivia newton john)

  11. angela210793
    • 5 years ago
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    I'd b still in Albania i know this 4 sure :P:P:P...

  12. amistre64
    • 5 years ago
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    Albania eh... is that were albinos come from? no offense

  13. angela210793
    • 5 years ago
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    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

  14. angela210793
    • 5 years ago
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    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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