COMEDK Exam 2015 Solved Paper
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A crane with a steel cable of length 11 m and radius 2.0 cm 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 × 10 11 Pa , what will be roughly the increase in the length of the cable while lifting the block?
(Take,g = 10 ms − 2 )
(Take,
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