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Mathematics 20 Online
OpenStudy (anonymous):

A projectile is launched straight up with an initial velocity of 120 ft/s. If acceleration due to gravity is –16 ft/s2, after about how many seconds will the object reach a height of 200 ft? h(t) = at2 + vt + h0 1.0 s 1.7 s 2.5 s 8.0 s

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