A kangaroo wants to jump over a 1m high barrier that is 3.0m away. this time the kangaroo jumped with a speed of 11 m/s relative to the ground. it was observed that the maximum height that it reached in its trajectory was 1.5m and it barely managed to clear the barrier passing to the other side. How far did the kangaroo fall from its initial position if the starting and ending points are at the same height?