Question
During heavy lifting, a disk between spinal vertebrae is subjected to a 5000-N compressional force. (a) What pressure is created, assuming that the disk has a uniform circular cross section 2.00 cm in radius? (b) What deformation is produced if the disk is 0.800 cm thick and has a Young's modulus of $1.5 \times 10^9 \textrm{ N/m}^2$?
1. $3.98 \times 10^6 \textrm{ Pa}$
2. $0.0021 \textrm{ cm}$
Solution Video