2-25. The motor is hoisting a block
with a constant acceleration of 
. The uniform beam has
a normal distributed mass 
and the length is 
. If the mass of the block is 
, determine the components of reaction at
the fixed support. Assume the size and mass of the pulley is negligible. 
and 
are
independent.
Block:
Beam:
Therefore, 
,
, 
.