Posted by **mike** on Friday, March 26, 2010 at 1:20pm.

a 3.5 kg dog stands on a 21 kg flatboat at distance D = 6.1 m from the shore. It walks 2.3 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.

I thought i have the right equation but my answer is not correct.

- physics help -
**bobpursley**, Friday, March 26, 2010 at 3:20pm
wouldn't the dog move 2.3(3.5/21) m toward the shore?

- physics help -
**mike**, Friday, March 26, 2010 at 4:12pm
then you would subtract the overall distance and the answer above? right?

- physics help -
**CJ**, Tuesday, January 25, 2011 at 5:41pm
remember that the boat moves as well...the dog is a system and the boat is a system

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