4. A 2.8 cm circular cross section of a bar experiences a 1.6 kN shear force.
a. What is the average shear stress in the cross section?
b. What is the maximum shear stress?
c. What shear force is needed to create a maximum shear stress of 20 MPa?
4. A 2.8 cm circular cross section of a bar experiences a 1.6 kN shear force....