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)?howmuchifitismadeofpolypropylene,pp(modulus1.2 gpa)?
1 answer:
You might be interested in
The first option is correct. See an explanation below.
Answer:
2x² - 3x + 6 = 0
a = 2 b = -3 c = 6
delta = b² - 4ac = 9 - 4.2.6 = -39