document.write( "Question 153687: Please help me solve the following word problem (note: this problem came straight from a worksheet):\r
\n" ); document.write( "\n" ); document.write( "An object is dropped from an initial height of s feet. The object's height at any time t, in seconds, is given by h= -16t^2 + s. How long does it take for an object dropped from 300 feet to hit the ground? Round your result to two decimal places.
\n" ); document.write( "

Algebra.Com's Answer #113138 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
You're looking for the time when \"h=0\" (when it has hit the ground)
\n" ); document.write( "\"-16t%5E2+%2B+s+=+0\"
\n" ); document.write( "\"-16t%5E2+%2B+300+=+0\"
\n" ); document.write( "\"-16t%5E2+=+-300\"
\n" ); document.write( "\"t%5E2+=+18.75\"
\n" ); document.write( "\"t+=+4.33\"sec
\n" ); document.write( "
\n" );