A duck that is being chased by a fox saves itself by sitting at the center of a circular pond of radius r. The duck can fly from land but cannot fly from the water. Furthermore, the fox cannot swim. The fox is four times faster than the duck.
Assuming that the duck and fox are perfectly smart, is it possible for the duck to ever reach the edge of the pond and fly away to its escape from the ground?
Submit 1 for 'Yes' and 0 for 'No'.