document.write( "Question 623709: 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?
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Algebra.Com's Answer #392247 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "The distance s that an object falls due to gravity varies jointly as the
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document.write( " acceleration g due to gravity and the square of the time t of fall
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document.write( " s = gt^2
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document.write( "rock falls for 2 seconds on earth
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document.write( " s = 4g
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document.write( "gravity on the moon is 0.172 that on earth
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document.write( "how many seconds would be required for the rock to fall an equal distance on the moon? 
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document.write( " 4g = .172gt^2
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document.write( " 4/.172 = t^2
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document.write( "  4.8sec = t  (rounded to one decimal point) \n" );
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