Engineering Mechanics-I (CEng 2053) Work Sheet
1. Determine the reaction forces at the pin supports and the forces in
all members of the using joint method.
2. For the composite body shown below, determine the x and y
coordinates of the centroid of the shaded area. The unshaded circular
hole at the origin has a radius of 1m.
3. For the rectangular hollow section having wall thickness t = 30 mm,
Determine:
a. Rectangular moments of inertia with respect to x- and y- axes.
b. Rectangular moments of inertia about the Centroidal axes of the
shaded area.
c. Polar moment of inertia about the origin and about the centroid
of the shaded area.
d. Rectangular radius of gyration with respect to x- and y-axes and
the polar radius of gyration about the origin.