Mathematics, 02.12.2020 19:00 viktoria1198zz
2. If a projectile is launched straight up from ground level with an initial velocity of 96 ft per sec. Its height in feet, s.
after t seconds is given by the equation
S = -16t? + 96t.
a) At what time(s) will it reach a height of 80 ft?
b) After how many seconds will it return to the ground?
Answers: 2
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