document.write( "Question 834615: A baseball player hits a ball. The ball leaves the bat with an initial upward velocity of 35 meters per second. If the ball is 1 meter off the ground when it leaves the bat, about how many seconds will it take for the ball to hit the ground? \n" ); document.write( "

Algebra.Com's Answer #503100 by Fombitz(32388) $\"\"$ $\"About$

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$\"x%5B0%5D=1\"$
\n" ); document.write( " $\"v%5B0%5D=35\"$
\n" ); document.write( " $\"x%5B1%5D=0\"$
\n" ); document.write( " $\"a=-9.8\"$
\n" ); document.write( " $\"x=x0%2Bv0%2At%2B%281%2F2%29at%5E2\"$
\n" ); document.write( " $\"-4.9t%5E2%2B35t%2B1=0\"$
\n" ); document.write( " $\"t+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"t+=+%28-35+%2B-+sqrt%28+%2835%29%5E2-4%2A%28-4.9%29%2A1+%29%29%2F%282%2A%28-4.9%29%29+\"$
\n" ); document.write( " $\"t+=+%28-35+%2B-+sqrt%28+1225%2B19.6%29%29%2F%28-9.8%29+\"$
\n" ); document.write( " $\"t+=+%28-35+%2B-+sqrt%28+1244.6%29%29%2F%28-9.8%29+\"$
\n" ); document.write( "Only positive time values make sense for this problem.
\n" ); document.write( " $\"t+=+%28-35+-+sqrt%28+1244.6%29%29%2F%28-9.8%29+\"$
\n" ); document.write( " $\"t+=+%28-70.28%29%2F%28-9.8%29+\"$
\n" ); document.write( " $\"t+=+7.2+\"$
\n" ); document.write( "7.2 seconds. \n" ); document.write( "

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