document.write( "Question 236757: A water rocket is launched upward with an initial velocity of 48 ft/sec. Its height h, in feet, after t seconds is given by h = 48t - 16t2. After how many seconds will the object hit the ground? \n" ); document.write( "

Algebra.Com's Answer #174184 by scott8148(6628) $\"\"$ $\"About$

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on the ground, h = 0\r
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\n" ); document.write( "\n" ); document.write( "factoring ___ 0 = 16t (3 - t)\r
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\n" ); document.write( "\n" ); document.write( "16t = 0 ___ t = 0 ___ this is the launch\r
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\n" ); document.write( "\n" ); document.write( "3 - t = 0 ___ 3 = t ___ this is the landing \n" ); document.write( "

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