PROBLEM $6\mathrm{.}11$

For the beam and loading shown,

consider section n$-$n and determine

$($a$)$ the largest shearing stress in that

section, $($b$)$ the shearing stress at point a$.$

in$.$

Ans is

a$)13\mathrm{.}15$ksi

b$)11\mathrm{.}16$ksi