ROTATIONAL MOTION Quiz

• It's a mistake
• Gravity is strongest there
• Because mass is symmetrically distributed around the centre
• The ring is hollow

• They are always different
• Geometric centre is heavier
• They coincide for uniform, regular shapes
• No relationship

• Only for squares
• By weighing
• By folding
• By suspending from vertices and drawing vertical lines

• The rod would float
• No change
• The weight would decrease
• Frictional forces might introduce horizontal components

• It makes the rod shiny
• It reduces cost
• It ensures uniform density and thus predictable CG location
• It increases length