5/109 The beam is subjected to the distributed load and the couple shown. If M is slowly increased starting from zero, at what value M0 will contact at B change from the lower surface to the upper surface?
Problem 5/111
5/112 The beam is subjected to an elliptical load distribu- tion and the point loads shown. For what value of the force P will the reaction at B go to zero?
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![671_5ed34568-91dc-484b-b15f-0daf126dc197.png](https://secure.tutorsglobe.com/CMSImages/671_5ed34568-91dc-484b-b15f-0daf126dc197.png)