document.write( "Question 364892: Its a word problem\r
\n" ); document.write( "\n" ); document.write( "A person holds a pistol straight upwards and fires. The initial velocity of must bullets is around 1200 ft/sec. The height of the bullet is a function of time and is described by h(x)=_=-16t^2+1200t. How long,, after the gun is fired, does the person have to get out of the way of the bullet falling from the sky?
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Algebra.Com's Answer #260135 by Alan3354(69443)\"\" \"About 
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h(x) = -16t^2+1200t
\n" ); document.write( "Find when h = zero.
\n" ); document.write( "-16t^2+1200t = 0
\n" ); document.write( "t = 0 (when fired)
\n" ); document.write( "t = 1200/16 = 75 seconds (bullet hits the ground)
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