document.write( "Question 501561: The height of an object tossed upward with an initial velocity of 104 feet per second is given by the formula h = -16t^2 + 104t, where h is the height in feet and t is the same time in seconds. Find the time required for the object to return to its point of departure.\r
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document.write( "Please, I need this problem to be solved by tomorrow night (9/21/2011). Thanks. \n" );
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Algebra.Com's Answer #338700 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The height of an object tossed upward with an initial velocity of 104 feet per second is given by the formula h = -16t^2 + 104t, where h is the height in feet and t is the same time in seconds. \n" ); document.write( " Find the time required for the object to return to its point of departure. \n" ); document.write( ": \n" ); document.write( "the point of departure (ground level) h = 0, therefore \n" ); document.write( "-16t^2 + 104t = 0 \n" ); document.write( "Factor out -16t, results \n" ); document.write( "-16t(t - 6.5) = 0 \n" ); document.write( "Two solutions \n" ); document.write( "t = 0 sec, when object is tossed, it as at ground level \n" ); document.write( "and \n" ); document.write( "t = 6.5 sec, when object returns to earth \n" ); document.write( " |