document.write( "Question 611572: a ball is dropped from a cliff that is 256 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S=256-16t^2. How many seconds(to tenths) will it take for the ball to hit the ground? \n" ); document.write( "
Algebra.Com's Answer #385031 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! a ball is dropped from a cliff that is 256 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S=256-16t^2. How many seconds(to tenths) will it take for the ball to hit the ground? \n" ); document.write( "---- \n" ); document.write( "When the ball hits the ground \"S\" will be zero. \n" ); document.write( "--- \n" ); document.write( "Solve: \n" ); document.write( "256-16t^2 = 0 \n" ); document.write( "16t^2 = 256 \n" ); document.write( "t^2 = 16 \n" ); document.write( "--- \n" ); document.write( "Positive solution: \n" ); document.write( "t = 4 seconds \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================= \n" ); document.write( " |