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The radius of The moon is one_fourth and its mass is one eighty-first that of The earth. If The acceleration due to gravity on The surface of The earth is 9.8m/s square what is its value on The moon surface (pls ans that for me)...

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g_(moon) = g_(earth)* (( (1)/(81) ))/( ((1)/( 4^(2)))) = g_(earth) * (16)/(81) = 9.8*16/81= 1.935
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