Posted by Michelle on Sunday, January 24, 2010 at 3:01am.
The horizontal distance covered is
X = 2 Vo^2/g sin A cos A
= (Vo^2/g) * sin (2A)
where Vo is the initial velocity and A is the takeoff angle.
Maximum range is obtained with A = 45 degrees. In this case,
X = Vo^2/g
Use this equation to solve for g
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