A cylindrical concrete silo is 7.5m in diameter and 28m high. It consists of a 6500kg concrete base and 4.0×10^4kg cylindrical concrete walls. Use a coordinate system with origin at the center of the cylinder's base and the axis along the axis of the cylinder. Neglect the thickness of the silo walls and base. Locate the center of mass when the silo is empty.
Total mass is 6500 + 40000 = 46500 By symmetry the c.m must lie on the y axis. Taking moment about the origin 46500*d = 6500*(28/2) d = 1.95 m from the origin. ============================
