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inn [45]
2 years ago
11

A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t

. After how many seconds does the projectile take to reach its maximum height?
Mathematics
1 answer:
Alex787 [66]2 years ago
4 0
You need to find the x-coordinate (h) of the vertex of the parabola.

-16t^2+704t=0\\
h=-\dfrac{b}{2a}=-\dfrac{704}{2\cdot(-16)}=22


After 22 seconds.
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