Mathematics, 31.10.2020 07:50 nightmarewade03
A rock is tossed vertically from a height of 2m with an initial velocity of 20 ms-1. The height of the rock, h, after t seconds can be modeled by the polynomial function :h(t)=−4.9t2+20t+2, t≥0. Calculate how many seconds, rounded to three significant figures, it takes for the rock to hit the ground.
Answers: 3
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A rock is tossed vertically from a height of 2m with an initial velocity of 20 ms-1. The height of t...
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