Mathematics, 30.11.2020 21:40 wednesdayA

A projectile is thrown upward so that its distance above the ground after t seconds is h = -16t2 + 608t. After how many seconds does it reach its maximum height? 38 s 19 s 28.5 s 9 s

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A projectile is thrown upward so that its distance above the ground after t seconds is h = -16t2 + 6...