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ksaimouli

  • 2 years ago

the graph below shows the height h(t) of a bird soaring in the sky after t seconds of observation

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  1. ksaimouli
    • 2 years ago
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    |dw:1352649695458:dw|

  2. ksaimouli
    • 2 years ago
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    where 2nd derivative +,- or 0 at .8,2,3,4,5.2,6,7

  3. ksaimouli
    • 2 years ago
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    @hartnn how to identify the 2nd derivative graph from function graph

  4. heena
    • 2 years ago
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    2nd derivative mean u have to find velocity on time 2 ,3,4,5,6,7,8 whether it i positive or negative or zero ok now take out ur pencil see the graph at poition 2 put ur pencile in the shape of curve u will fine u move ur pencil clockwise means it is +ve

  5. heena
    • 2 years ago
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    getting?

  6. ksaimouli
    • 2 years ago
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    2nd mean not velocity it means acceleration girl

  7. ksaimouli
    • 2 years ago
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    derivative is velocity

  8. ksaimouli
    • 2 years ago
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    they gave position

  9. heena
    • 2 years ago
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    ok no prob u have to do this same way but thiking logically by comparing it with velocity like in position in time 2 sec u fine velocity in +Ve mean velocity is incereasing and if velocity is increasing then acc muts be +Ve

  10. heena
    • 2 years ago
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    getting?

  11. heena
    • 2 years ago
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    u see till 5sec velocity is increaing means till 5ec acceleration is +Ve but on 5 velocity is constant mean acceleration is zero and then from 6 veolcity is drceasing mean der must be deacceleration so accleration must be -ve

  12. ksaimouli
    • 2 years ago
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    i got i graphed it

  13. ksaimouli
    • 2 years ago
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    taking the critical points

  14. heena
    • 2 years ago
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    great :)

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