document.write( "Question 32272: An object is thrown with an initial velocity of 14 ft per second. Its height is given by h= -14t^2 + 56 at time t seconds. After how many seconds does it hit the ground? \n" ); document.write( "
Algebra.Com's Answer #18793 by ikdeep(226)\"\" \"About 
You can put this solution on YOUR website!
we have...
\n" ); document.write( "speed = 14 ft/second
\n" ); document.write( "distance or h = -14t^2 + 56 \r
\n" ); document.write( "\n" ); document.write( "also we know that ...Distance = speed * time \r
\n" ); document.write( "\n" ); document.write( "putting the above values in the formula..we get\r
\n" ); document.write( "\n" ); document.write( " -14t^2 + 56 = 14 * t \r
\n" ); document.write( "\n" ); document.write( "taking common 14 from LHS ,,we get\r
\n" ); document.write( "\n" ); document.write( "14 ( -t^2 + 4) = 14 * t \r
\n" ); document.write( "\n" ); document.write( "divide both sides by 14 and we get ...\r
\n" ); document.write( "\n" ); document.write( "-t^2 + 4 = t \r
\n" ); document.write( "\n" ); document.write( "or 0 = t^2 + t - 4 \r
\n" ); document.write( "\n" ); document.write( "solve the value of t by discriminent and you get the value of t \r
\n" ); document.write( "\n" ); document.write( "and put the value of t in formula ..distance = speed * time\r
\n" ); document.write( "\n" ); document.write( "and you get distance also.,.\r
\n" ); document.write( "\n" ); document.write( "Still if you unable to solve further contact me again. \r
\n" ); document.write( "\n" ); document.write( "Hope this will help you \r
\n" ); document.write( "\n" ); document.write( "Please feel free to revert back for any further queries.
\n" ); document.write( " \n" ); document.write( "
\n" );