# Center of gravity 2

**Classical Mechanics**Level 3

Two people with respective masses of \(85 \text{ kg} \) and \( 55 \text{ kg} \) are sitting \( 3 \text{ m} \) apart from each other in a \( 78 \text{ kg} \) rowboat that is at a complete standstill. If they switch places, how far will the boat move (in cm)?