Acantilevered boom is part of an assembly machine and is made of from a steel beam s4x7.7. a tool with a weight of 650 lb moves continuously from the end of the 60in beam to a point 25in. from the support. specify a suitable design factor for the boom (n value), giving the material, the cross-sectional shape, and the dimensions. s= - 45 ksi and s=60 ksi for the steel beam and assume k= -1. desired reliability 0.99.