document.write( "Question 1034545: Please help me with this problem: An object is launched at 19.6 meters per second from a 58.8 meter tall platform. The equation for the object's height s at time t seconds after launch is s(t) = -4.9t2+ 19.6t + 58.8, where s is in meters.
\n" ); document.write( "a. When does the object strike the ground?
\n" ); document.write( "b. What was its maximum height?
\n" ); document.write( "c. How long will it take to reach its maximum height?
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Algebra.Com's Answer #649220 by Alan3354(69443) $\"\"$ $\"About$

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An object is launched at 19.6 meters per second from a 58.8 meter tall platform. The equation for the object's height s at time t seconds after launch is s(t) = -4.9t2+ 19.6t + 58.8, where s is in meters.
\n" ); document.write( "a. When does the object strike the ground?
\n" ); document.write( " s(t) = -4.9t2+ 19.6t + 58.8
\n" ); document.write( "-4.9t2+ 19.6t + 58.8 = 0
\n" ); document.write( "Solve for t, ignore the negative solution.
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\n" ); document.write( "b. What was its maximum height?
\n" ); document.write( "It's the vertex of the parabola.
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\n" ); document.write( "c. How long will it take to reach its maximum height?
\n" ); document.write( "t of the vertex.
\n" ); document.write( " \n" ); document.write( "

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