document.write( "Question 275417: A rock falls from a tower that is 304 feet high. As it is falling, its height is given by the formula h=304-16t^2. How many seconds(in tenths) will it take for the rock to hit the ground (h=0)? (I believe you just set H=0 and then solve? Is that correct?) \n" ); document.write( "
Algebra.Com's Answer #200880 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Yes, the height will be zero when the rock hits the ground.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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