document.write( "Question 1053774: The force of the wind blowing on a vertical surface varies jointly as the area of the surface and the square of the velocity. If a wind of 40 mph exerts a force of 50 lb on a surface of 1/2 feet square, how much force will a wind of 80 mph place on a surface of 2 ft square? \n" ); document.write( "

Algebra.Com's Answer #668984 by josmiceli(19441) $\"\"$ $\"About$

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$\"+50+=+k%2A40%2A%28+1%2F2+%29+\"$
\n" ); document.write( " $\"+50+=+20k+\"$
\n" ); document.write( " $\"+k+=+5%2F2+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( " $\"+f+=+k%2A80%2A2+\"$
\n" ); document.write( " $\"+f+=+%285%2F2%29%2A80%2A2+\"$
\n" ); document.write( " $\"+f+=+400+\"$
\n" ); document.write( "The force is 400 pounds\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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