A steel bar of rectangular cross section (1.5 in. 2 3 .0 in.) carries a tensile load P (see fig- ure). The allowable stresses in tension and shear are 14,500 psi and 7,100 psi, respectively. Determine the maximum permissible load Pmax.

Explanation:

Value of the cross-sectional area is as follows.

        A =

           = 3.45

The given data is as follows.

          Allowable stress = 14,500 psi

          Shear stress = 7100 psi

Now, we will calculate maximum load from allowable stress as follows.

                       =

                       = 50025 lb

Now, maximum load from shear stress is as follows.

                      =

                      = 48990 lb

Hence, will be calculated as follows.

                  = 48990 lb

Thus, we can conclude that the maximum permissible load is 48990 lb.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach