An 84.4 kg man is standing at the rear of a 425 kg iceboatthat is moving at 4.16 m/s across the ice that may be considered tobe frictionless. He decides to walk to the front of the 18.2 meterlong boat and does so at a speed of 2.08 m/s with respect to theboat. How far did the boat move across the ice while he waswalking?