" The femur is a bone in the leg whose minimum cross-sectional area is about 4.0 X 10-ª m². A compressional force in excess of 6.8 × 10ª N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists under a maxi- 78. mum-stress condition?

" The femur is a bone in the leg whose minimum cross-sectional area is about 4.0 X 10-ª m². A compressional force in excess of 6.8 × 10ª N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists under a maxi- 78. mum-stress condition?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 66PQ: A steel cable 2.00 m in length and with cross-sectional radius 0.350 mm is used to suspend from the...

See similar textbooks

Similar questions

Alarge uniform cylindrical steel rod of density =7.8g/cm3 is 2.0 m long and has a diameter of 5.0 cm. the rod is fastened to a concrete floor with its long axis vertical.what is the normal stress in the rod at the cross-section located at (a)1.0 mfrom its lower end?(b)1.5 m from the lower end?
A 100-N weight is attached to a free end of a metallic wire that hangs from the ceiling. When a second 100-N weight is added to the wire, it stretches 3.0 mm. The diameter and the length of the wire are 1.0 mm and2.0 m, respectively. What is Young’s modulus of the metal used to manufacture the wire?
Two rods, one made of copper and the other of steel, have the same dimensions. If the copper rod stretches by 0.15mm under some stress, how much does the steel rod stretch under the same stress?
Can compress stress be applied to a rubber band?
An aluminium (=2.7g/cm3) wire is suspended from the ceiling and hangs vertically. How long must the wire be before the stress at its upper end reaches the proportionality limit, which is 8.0107N/m2 ?
A steel cable 2.00 m in length and with cross-sectional radius 0.350 mm is used to suspend from the ceiling a 10.0-kg model aircraft that is flying in a horizontal circle with an angular speed of 6.00 rad/s. What is the strain produced in the cable?
Check Your Understanding Find the compressive stress and strain at the base of Nelson’s column.
In Example 14.3, we found that one of the steel cables supporting an airplane at the Udvar-Hazy Center was under a tension of 9.30 103 N. Assume the cable has a diameter of 2.30 era and an initial length of 8.00 m before the plane is suspended on the cable. How much longer is the cable when the plane is suspended on it?
Review the relationship between stress and strain. Can you find any similarities between the two quantities?
Can Young’s modulus have a negative value? What about the bulk modulus?
A 90-kg mountain climber bangs from a nylon rope and stretches it by 25.0 cm. If the rope was originally 30.0 m bog and its diameter is 1.0 cm, is Young’s modulus for the nylon?
Is it possible to rest a ladder against a rough wall when the floor is frictionless?