COMEDK Exam 2015 Solved Paper

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Question : 5 of 180
 
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A crane with a steel cable of length 11m and radius 2.0‌cm is employed to lift a block of concrete of mass 40 tons in a building site. If the Young's modulus of steel is 2.0×1011‌Pa, what will be roughly the increase in the length of the cable while lifting the block?
(Take, g=10ms−2 )
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