document.write( "Question 645440: Don't remember how to do these word problems. But the height is also giving me a trouble.
\n" ); document.write( "If a stone is tossed from the top of a 350 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 350, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth’s place; include units in your answer. \n" ); document.write( "

Algebra.Com's Answer #405452 by Alan3354(69443) $\"\"$ $\"About$

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If a stone is tossed from the top of a 350 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 350, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth’s place; include units in your answer.
\n" ); document.write( "--------------------
\n" ); document.write( "h(t) = -9.8t2 – 10t + 350
\n" ); document.write( "At impact, h(t) = 0
\n" ); document.write( "-9.8t2 – 10t + 350 = 0
\n" ); document.write( "Solve for t, ignore the negative solution.
\n" ); document.write( "==========================================
\n" ); document.write( "h(t) = -9.8t2 – 10t + 350 might be true somewhere, but on Earth it's
\n" ); document.write( "h(t) = -4.9t^2 – 10t + 350, not -9.8 \n" ); document.write( "

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