You are stranded in a stationary boat. Your friend is on a dock, but the boat is

Question

You are stranded in a stationary boat. Your friend is on a dock, but the boat is just beyond his reach. There is a 5 kg anchor in the boat. You'd like to get the boat to move closer to the dock position of the boat relative to the dock. A. The boat will move closer to the dock. B. The boat will move away from the dock. C. The position of the boat relative to the dock will not change. If you move to the end of the boat furthest from the dock, what effect will this have on the boat? If you throw the anchor directly away from the dock, what effect will this have on the boat?

Explanation / Answer

First part -

If you move to the end of the boat closest to the dock, what effect will this have on the boat?

Answer - B. The boat will move away from the dock.

Explanation: As the Center of mass of the boat - man would not change.

Second Part -

If you throw the anchor directly away from the dock, what effect will this have on the boat?

Answer - A. The boat will move closer to the dock.

Explanation: As per principle of Conservation of Momentum.

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