An electrical contact contains a flat spring in the form of a cantilever beam, b=5mm wid...

An electrical contact contains a flat spring in the form of a cantilever beam, b=5mm wide by L=50mm long by t mm thick, is subjected at its free end to a load P that varies continuously from 0 to 10 N (Fig. P4.38). Employ the Soderberg criterion to calculate the value of t based on yield strength , fatigue strength , and a factor of safety n=1.5.