Question

A 4. 5 kg dog stands on an 18 kg flatboat at distance D=6. 1 m from the shore. It walks 2. 4 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore.

Answer 1

mass of dog and boat are m = 4.5 kg, and M = 18 kg respectively.

Initial distance of dog from the shore, D = 4.5 m