The transverse shear V at a certain section of timber beam is 25kN. if the beam has the cross sectio shown in the figure, determine:
(a) the horizontal shearing stress in the glued joint 50mm above the bottom of the beam
(b)the vertiacal shearing stress at a point 80mm above the bottom of the beam.
(c) the magnitude and location of the maximum vertical shearng stress on the cross section