document.write( "Question 1108570: An object is dropped from a balloon 3600 feet above the ground. Find the time it takes to reach
\n" ); document.write( "the ground if the height of the object is given by the equation h(t) = –16t^2+ 3600 \n" ); document.write( "

Algebra.Com's Answer #723543 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+h%28t%29+=+-16t%5E2+%2B+3600+\"$
\n" ); document.write( "The object is dropped at $\"+t=0+\"$
\n" ); document.write( " $\"+h%280%29+=+-16%2A0%5E2+%2B+3600+\"$
\n" ); document.write( " $\"+h%280%29+=+3600+\"$ ft
\n" ); document.write( "-------------------------------
\n" ); document.write( "You need to find $\"+t+\"$ in sec when
\n" ); document.write( " $\"+h%28t%29+=+0+\"$ ( the height above ground is zero )
\n" ); document.write( " $\"+-16t%5E2+%2B+3600+=+0+\"$
\n" ); document.write( " $\"+16t%5E2+=+3600+\"$
\n" ); document.write( " $\"+t%5E2+=+225+\"$
\n" ); document.write( " $\"+t+=+15+\"$
\n" ); document.write( "The object hits the ground in 15 sec
\n" ); document.write( " \n" ); document.write( "

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