document.write( "Question 286715: h=-16t+vt+s A ball is tossed into the air from a height of 10 feet with an initial velocity of 12 feet /sec. Find the time t(in seconds) for the object to reach the ground.\r
\n" ); document.write( "\n" ); document.write( "#2 a baseball player releases a baseball at a height of 6 feet with an initial velocity of 46 feet/sec. find the time(in seconds) for the ball to reach the ground.
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Algebra.Com's Answer #207925 by stanbon(75887)\"\" \"About 
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h=-16t+vt+s A ball is tossed into the air from a height of 10 feet with an initial velocity of 12 feet /sec. Find the time t(in seconds) for the object to reach the ground.
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\n" ); document.write( "h(t) = -16t^2 + 12t + 10
\n" ); document.write( "Solve: -16t^2 + 12t + 10 = 0
\n" ); document.write( "Modify: -8t^2 + 6t + 5 = 0
\n" ); document.write( "-8t^2 + 10t - 4t + 5 = 0
\n" ); document.write( "-2t(4t-5)-(4t-5) = 0
\n" ); document.write( "(4t-5)(-2t-1) = 0
\n" ); document.write( "Positive solution:
\n" ); document.write( "t = 5/4 second
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\n" ); document.write( "#2 a baseball player releases a baseball at a height of 6 feet with an initial velocity of 46 feet/sec. find the time(in seconds) for the ball to reach the ground.
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\n" ); document.write( "Solve:: -16t^2 + 46t + 6 = 0
\n" ); document.write( "8t^2 - 23t -3 = 0
\n" ); document.write( "8t^2 - 24t + t - 3 = 0
\n" ); document.write( "8t(t-3) + t-3 = 0
\n" ); document.write( "(t-3)(8t+1) = 0
\n" ); document.write( "Positive solution:
\n" ); document.write( "t = 3 seconds
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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