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26 January, 18:20

The height in feet of the projectile seconds after lunch is modeled by the equation h=32t - 16t2 how long after launch does the projectile return to the ground

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  1. 26 January, 20:12
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    When h=0 is when it returns to the ground

    solve

    0=32t-16t^2

    factor

    0=16t (2-t)

    set equal to zero

    0=16t

    0=t

    0=2-t

    t=2

    at t=0 and 2

    it returns after 2 seconds
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