document.write( "Question 169848: Suppose a rock is dropped from a height of 100m on Mars and also on Venus.
\n" ); document.write( "On Mars .g=3.7 m/s2 and Venus,g = 8.9m/s2.How long does it take the rock to fall to a Height of 25 m on each Planet
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Algebra.Com's Answer #125270 by Alan3354(69443)\"\" \"About 
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Suppose a rock is dropped from a height of 100m on Mars and also on Venus.
\n" ); document.write( "On Mars .g=3.7 m/s2 and Venus,g = 8.9m/s2.How long does it take the rock to fall to a Height of 25 m on each Planet
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\n" ); document.write( "In both cases, it's the time to fall 75 meters.
\n" ); document.write( "\"s+=+%28at%5E2%29%2F2\" (s is the distance)
\n" ); document.write( "On Mars:
\n" ); document.write( "(((75 = (3.7t^2)/2}}}
\n" ); document.write( "\"3.7%2At%5E2+=+150\"
\n" ); document.write( "\"t+=+sqrt%28150%2F3.7%29\"
\n" ); document.write( "t = 6.367 seconds
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\n" ); document.write( "On Venus:
\n" ); document.write( "The only change is gravitational acceleration, so start with:
\n" ); document.write( "\"t+=+sqrt%28150%2Fg%29\"
\n" ); document.write( "\"t+=+sqrt%28150%2F8.9%29\"
\n" ); document.write( "t = 4.105 seconds\r
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