What is the formula for calculating the average normal stress in a cable? Calculate the average normal stress in a cable with a diameter of 10 inches and a force of 2000 lb. Given that E=1, determine the amount of stretch in the cable.
a. The average normal stress is 2.5 and the cable stretches by 0.005 inches.
b. The average normal stress is 0.2 and the cable stretches by 0.1 inches.
c. The average normal stress is 20 and the cable stretches by 0.0005 inches.
d. The average normal stress is 0.002 and the cable stretches by 0.05 inches.