Romeo (75.0 kg) entertains Juliet (52.0 kg) by playing his guitar from the rear of their boat at rest in still water, 2.80 m away from Juliet who is in the front of the boat. After the serenade, Juliet carefully moves to the rear of the boat (away from shore) to plant a kiss on Romeo's cheek. How far does the 78.0 kg boat move toward the shore it is facing?