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  • 06-10-2016
  • Mathematics
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A projectile is thrown upward so that its distance above the ground after t seconds is h = -16t2 672t. after how many seconds does it reach its maximum height?

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Аноним Аноним
  • 06-10-2016
42 would be when the ball hits the ground again, 21 would be when it's at its maximum.
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