document.write( "Question 1163809: A rocket beigns from rest and accelerates upward at +0.5m/s^2.
\n" ); document.write( "a) At what time will the rocket reach a height of 1000 m?
\n" ); document.write( "b) What will be the rocket's velocity at that point?
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Algebra.Com's Answer #788021 by Alan3354(69443)\"\" \"About 
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A rocket beigns from rest and accelerates upward at +0.5m/s^2.
\n" ); document.write( "a) At what time will the rocket reach a height of 1000 m?
\n" ); document.write( "h(t) = at^2/2
\n" ); document.write( "at^2/2 = 1000
\n" ); document.write( "0.5*t^2 = 1000
\n" ); document.write( "t^2 = 2000
\n" ); document.write( "t = sqrt(2000) seconds
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\n" ); document.write( "\n" ); document.write( "b) What will be the rocket's velocity at that point?
\n" ); document.write( "v = a*t = 0.5*sqrt(2000) m/sec
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