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anonymous

  • one year ago

A small rock falling from the top of a 124-ft-tall building with an initial downward velocity of –30 ft/sec is modeled by the equation h(t) = –16t2 – 30t + 124, where t is the time in seconds. For which interval of time does the rock remain in the air? t = 2 t > –2 t < 2 t > 2

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  1. anonymous
    • one year ago
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    any thoughts?

  2. anonymous
    • one year ago
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    T<2?

  3. anonymous
    • one year ago
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    plug in 0 what do you get

  4. anonymous
    • one year ago
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    into the equation

  5. anonymous
    • one year ago
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    you are correct I believe.

  6. anonymous
    • one year ago
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    hold on

  7. anonymous
    • one year ago
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    t=2

  8. anonymous
    • one year ago
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    THank you so much!

  9. anonymous
    • one year ago
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    When you plug in t=2, you get 0, when it hits the ground, it remains in the air for 2 seconds

  10. anonymous
    • one year ago
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    medal and fan?

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spraguer (Moderator)
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