Two girl scouts are sitting in a large canoe on a still lake whileat summer camp

Question

Two girl scouts are sitting in a large canoe on a still lake whileat summer camp. The canoe happens to be oriented with thefront of the canoe pointing due north. One of the girls is atthe front of the canoe and the other is at the back of thecanoe. The girl at the front walks to sit next to her friendat the back and sits down. What effect does this event haveon the canoe?

PLEASE EXPLAIN ATLEAST A PARAGRAPH

a) The canoe will still be at rest, but it will be south ofits original position.

b) The canoe will still be at rest, but it will be north ofits original position.

c) The canoe will be moving toward the south.

d) The canoe will be moving toward the north.

e) The canoe will still be at rest at its originalposition.

Explanation / Answer

If the girl walks to the back of the canoe by Newton's third law she should put a force on the canoe toward the front.(since the canoe is putting a force on her allowing her to go to the back) Therefore the canoe should move toward the north.

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