When the motor is turning in Fig. 1, it is observed that the end of the beam has a total u...

When the motor is turning in Fig. 1, it is observed that the end of the beam has a total up and down vibration of 0.25 in. The beam is of steel with σut = 92,000 psi, σyp = 79,000 psi, and σe = 26,000 psi. Find the factor of safety at the wall where the stress concentration factor is 1.5.

Figure 1