willie
10 years, 7 months ago
Rated 8.93 earned 11368.00 around 349 assignments.
The wire of a hoist has a cross sectional area 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 magnesium (modulus 45 GPa)? How much will it extend if it is made of polypropylene, PP (modulus 1.6 GPa)? (Assume purely elastic deformations).
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