22.
,
, and 
are independently and
normally distributed, and their distributions are 
N, 
N, and 
, respectively. Determine the distribution of the resultant
moment 
about point A.
Solution: The
distribution of is 
.
22.
,, and are independently and
normally distributed, and their distributions are N, N, and , respectively. Determine the distribution of the resultant
moment about point A.
Solution: The
distribution of is .