the beam shown below can safely supportatensileorcompressivestressof350mpa. (a)computethemaximumbendingmomentinthebeam intermsoftheforcef.[8pts] (b)determinethelargestforcefthebeamcansafelysupportifithasthecross-section(a)?ifithascross-section (b)?[8pts] (c)whichdesignisamoreefficientuseofmaterial?why? [4pts