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In Fig. 9-45a, a 4.5 kg dog stands on an 18 kg flatboat at
Chapter , Problem 17(choose chapter or problem)
QUESTION:
In Fig. 9-45a, 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.(Hint: See Fig.9-45b.)
Questions & Answers
QUESTION:
In Fig. 9-45a, 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.(Hint: See Fig.9-45b.)
ANSWER:Step 1 of 2
There is no net horizontal force on the dog-boat system, so their centre of mass does not move.
Therefore
Which implies that the