document.write( "Question 318547: The distance s that an object falls due to gravity varies jointly as the acceleration g due to gravity and the square of the time t of fall. The acceleration due to gravity on the moon is 0.172 that on earth. If a rock falls for 2 seconds on earth, how many seconds would be required for the rock to fall an equal distance on the moon? \n" ); document.write( "

Algebra.Com's Answer #228024 by csr212(7) $\"\"$ $\"About$

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D=gt^2
\n" ); document.write( " It fell the same distance on the earth and the moon so D=D
\n" ); document.write( "Earth is G= 9.8 m/s
\n" ); document.write( "(9.8)2^2 =.172(9.8)t^2
\n" ); document.write( "39.2=1.6856t^2
\n" ); document.write( "23.2558...= t^2
\n" ); document.write( "4.8 s = time it would take to fall on the moon
\n" ); document.write( " \n" ); document.write( "

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