FIGURE 3 shows a uniform rod of length 1.80 m and mass 9 kg resting on support
at point X. Weight of the object A is 60 N is put on the end of the rod.
(a)
If the total torque is 80.3 N m, determine the weight of the object B which is
60 cm from point X.
to the centre of gravity of the rod. determine.