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Mathematics, 10.03.2020 00:55 getsic

The cable of a hoist has a cross-section of 80 mm2. the hoist is used to lift a crate weighing 500 kg. what is the stress in the cable? the free length of the cable is 3 m. how much will it extend if it is made of steel (modulus 200 gpa)?,pp(modulus1.2 gpa)?

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