A rod AB is 120cm long that weighs 80g. Find the distance from point A of the centre of mass of the rod when a mass of 100g is placed at end A and a further mass of 220g is added to the other end B. Answer [a]cm 100g 220g 80g B 120cm Specified Answer for: a 78 uestion 6 O out of 10 points Using your answer from the previous question and the theorem of Pappus and Guldinus. Find the volume of the solid by rotating the cross-section about the x axis. Answer [a]T cm3 6cm Ticm 2cm 2cm 4cm 2cm, 2cm 2cm X axis Datum 6cm Specified Answer for: a 52.12