Three small objects, all of mass 1 kg, are arranged as an equilateral triangle of sides 3 m in length, as shown. The left-most object is on (0m, 0m). Calculate the moment of inertia of the system if it spins about the (a) X axis; (b) Y axis.
(a) Ix = 6.8 kg•m2; (b) Iy = 4.5 kg•m2
(a) Ix = 18 kg•m2; (b) Iy = 11.3 kg•m2
(a) Ix = 9.0 kg•m2; (b) Iy = 18 kg•m2
(a) Ix = 6.8 kg•m2; (b) Iy = 11.3 kg•m2
Master Inertia of disc with point masses with a bite sized video explanation from Patrick Ford