A man grows into a giant such that his linear dimensions increase b...

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A man grows into a giant such that his linear dimensions increase by a factor of 9 . Assuming
P that his density remains same, the stress in the leg

W. will change by a factor of :
(1) 81
(2) \( \frac{1}{81} \)
(3) 9
(4) \( \frac{1}{9} \)
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