PROBLEM No$.1(25$ points$)$

A book shelf is constructed from a $12-ft$ long board placed on narrow

bricks located $2-$ft from each end. The books are each $1-$inch wide

and weigh $2$ Lbs each. They are stacked side$-$by$-$side along the

entire length of the board, except for a $2-$ft gap just to right of the left

brick where someone has removed the books. Draw the shear and

moment diagram for the board.

Note: Ignore the weight of the board. The sketch is not accurate to

scale $($ie: the number of books shown in the sketch is NOT correct!$)$

The bricks can be modelled a s a pin and roller

Denote curves as "curnes" on your diagrams!

please help solve and show the shear diagram and bending diaram, that is what i am having problems with the most.