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28 August, 15:15

The height h, in feet, of a projectile t seconds after launch is modeled by the equation h = 32t - 16t2. How long after launch does the projectile return to the ground?

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  1. 28 August, 15:31
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    Step-by-step explanation:

    when it return to the ground, h = 0

    32t - 16t2 = 0 and solve for t

    t = 0, 2 ... 0 is the start, 2 is when it returns
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