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Math·Advanced Math·Nonlinear equations in one variable and systems of equations in two variables
hardh(t)=−4.9t2+25t
The equation above models the height h, in meters, of an object t seconds after it is launched from the ground with an initial vertical velocity of 25 meters per second. After approximately how many seconds will the object hit the ground?
The equation above models the height h, in meters, of an object t seconds after it is launched from the ground with an initial vertical velocity of 25 meters per second. After approximately how many seconds will the object hit the ground?
A
2.5
B
5.1
C
10.2
D
25.0