A 44 kg women is in a 62 kg, 5 m long boat that is initially at rest. She walks from a spot 1.00 m from one end to a spot 1.00 m from the other end.
(a) If the resistance of the water is negligible, how far does the boat move during this process? (hint: think center of mass)
(b) If she walked at a speed of 0.50 m/s, how fast was the boat moving while she was walking?