document.write( "Question 677687: A ball is thrown upward with an initial velocity of 96 ft/s from a height 640 ft. It's height h, in fact after t seconds is given by h=-16t^2 + 96 +640. After how many seconds will the ball reach the ground? \n" ); document.write( "
Algebra.Com's Answer #420996 by lynnlo(4176)\"\" \"About 
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10seconds \n" ); document.write( "
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