document.write( "Question 423982: A launched rocket has an altitude, in meters, given by the polynomial h+vt-4.9^2, where h is the height, in meters, from which the launch occurs, at velocity v meters per second, and t is the number of seconds for which the rocket is airborne. If a rocket is launched from the top of a tower 100 meters high with an initial upward speed of 20 meters per second, what will its height be after 2 seconds.\r
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Algebra.Com's Answer #295636 by Alan3354(69443)\"\" \"About 
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A launched rocket has an altitude, in meters, given by the polynomial h+vt-4.9^2, where h is the height, in meters, from which the launch occurs, at velocity v meters per second, and t is the number of seconds for which the rocket is airborne. If a rocket is launched from the top of a tower 100 meters high with an initial upward speed of 20 meters per second, what will its height be after 2 seconds.
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\n" ); document.write( "I think it's h(t) = h + vt - 4.9t^2
\n" ); document.write( "h(2) = 100 + 20*2 - 4.9*4
\n" ); document.write( "h(2) = 120.6 meters
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\n" ); document.write( "PS This is not a rocket, rockets have thrust and don't fall ballistically.
\n" ); document.write( "This is just a projectile that is launched and has no power of its own.
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