When Sharon jumps out of her canoe onto the dock, her feet push against the canoe with action force. Describe the motion of the canoe as she jumps out of the boat.
According to Newton's third law of motion, for every action, there is an equal and opposite reaction. In this scenario, as Sharon jumps out of her canoe onto the dock, her feet pushing against the canoe constitute the action force. As a result, the canoe experiences a reaction force pushing in the opposite direction.
Therefore, the motion of the canoe can be described as being pushed away from the dock. Since Sharon's feet are exerting a force against the canoe in one direction, the canoe will move in the opposite direction, away from the dock. The extent and speed of the canoe's motion would depend on factors such as Sharon's force, her weight, and the resistance offered by the water.