Robert and his younger brother Jake decide to go fishing in a nearby lake. Just before they cast off, they are both sitting at the back of the boat and the bow of the boat is touching the pier. Robert notices that they have left the fishing bait on the pier and asks Jake to go get the bait. Jake has a mass of 64.5 kg and an arm reach of 50.0 cm, Robert has a mass of 82.0 kg, and the boat has a mass of 88.0 kg and is 2.70 m long. Determine the distance the boat moves away from the pier as Jake walks to the front of the boat. Ignore any friction between the boat and the water. The boat is symmetrical and the CM is at the center of the boat. Please answer the question with a step by step process using center of mass.
