Question
a stone thrown upward from the top of a 320-foot cliff at 128 ft/sec eventually falls to the beach below?
how long does the stone take to reach its highest point?
how long does the stone take to reach its highest point?
Answers
the height h is
h(t) = 320 + 128t - 16t^2
The vertex of this parabola is at t = 4
So, figure h(4)
h(t) = 320 + 128t - 16t^2
The vertex of this parabola is at t = 4
So, figure h(4)
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